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TI-2026-16238 Aliases CVE-2026-20021GHSA-qjf3-5p7q-6r9m

Memory leak in Cisco Secure Firewall Adaptive Security Appliance Software

Priority LOW 19CWE-401Published · Updated

Key facts

Attack vector
Adjacent network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · Low
Fix status
No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-401.

Summary

A vulnerability in the OSPF protocol of Cisco Secure Firewall Adaptive Security Appliance (ASA) Software and Cisco Secure Firewall Threat Defense (FTD) Software could allow an authenticated, adjacent attacker to exhaust memory on an affected device, resulting in a denial of service (DoS) condition. This vulnerability is due to improperly validating input by the OSPF protocol when parsing packets. An attacker could exploit this vulnerability by by sending crafted OSPF packets to an affected device. A successful exploit could allow the attacker to exhaust memory on the affected device, resulting in a DoS condition.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00221 12th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
CiscoCisco Secure Firewall Adaptive Security Appliance (ASA) Software9.12.1; 9.12.1.2; 9.12.1.3; 9.12.2; 9.12.2.4; 9.12.2.5; 9.12.2.9; 9.12.3; 9.12.3.2; 9.12.3.7; 9.12.4; 9.12.3.12; 9.12.3.9; 9.12.2.1; 9.12.4.2; 9.12.4.4; 9.12.4.7; 9.12.4.10; 9.12.4.13; 9.12.4.8; 9.12.4.18; 9.12.4.24; 9.12.4.26; 9.12.4.29; 9.12.4.30; 9.12.4.35; 9.12.4.37; 9.12.4.38; 9.12.4.39; 9.12.4.40; 9.12.4.41; 9.12.4.47; 9.12.4.48; 9.12.4.50; 9.12.4.52; 9.12.4.54; 9.12.4.55; 9.12.4.56; 9.12.4.58; 9.12.4.62; 9.12.4.65; 9.12.4.67; 9.16.1; 9.16.1.28; 9.16.2; 9.16.2.3; 9.16.2.7; 9.16.2.11; 9.16.2.13; 9.16.2.14; 9.16.3; 9.16.3.3; 9.16.3.14; 9.16.3.15; 9.16.3.19; 9.16.3.23; 9.16.4; 9.16.4.9; 9.16.4.14; 9.16.4.19; 9.16.4.27; 9.16.4.38; 9.16.4.39; 9.16.4.42; 9.16.4.48; 9.16.4.55; 9.16.4.57; 9.16.4.61; 9.16.4.62; 9.16.4.67; 9.16.4.70; 9.16.4.71; 9.16.4.76; 9.16.4.82; 9.16.4.84; 9.16.4.85; 9.17.1; 9.17.1.7; 9.17.1.9; 9.17.1.10; 9.17.1.11; 9.17.1.13; 9.17.1.15; 9.17.1.20; 9.17.1.30; 9.17.1.33; 9.17.1.39; 9.17.1.45; 9.17.1.46; 9.18.1; 9.18.1.3; 9.18.2; 9.18.2.5; 9.18.2.7; 9.18.2.8; 9.18.3; 9.18.3.39; 9.18.3.46; 9.18.3.53; 9.18.3.55; 9.18.3.56; 9.18.4; 9.18.4.5; 9.18.4.8; 9.18.4.22; 9.18.4.24; 9.18.4.29; 9.18.4.34; 9.18.4.40; 9.18.4.47; 9.18.4.50; 9.18.4.52; 9.18.4.53; 9.18.4.57; 9.18.4.66; 9.18.4.67; 9.18.4.68; 9.19.1; 9.19.1.5; 9.19.1.9; 9.19.1.12; 9.19.1.18; 9.19.1.22; 9.19.1.24; 9.19.1.27; 9.19.1.28; 9.19.1.31; 9.19.1.37; 9.19.1.38; 9.19.1.42; 9.20.1; 9.20.1.5; 9.20.2; 9.20.2.10; 9.20.2.21; 9.20.2.22; 9.20.3; 9.20.3.4; 9.20.3.7; 9.20.3.9; 9.20.3.10; 9.20.3.13; 9.20.3.16; 9.20.3.20; 9.20.4; 9.20.4.7; 9.20.4.10; 9.20.4.14; 9.22.1.1; 9.22.1.3; 9.22.1.2; 9.22.1.6; 9.22.2; 9.22.2.4; 9.22.2.9; 9.22.2.13; 9.22.2.14; 9.23.1; 9.23.1.3; 9.23.1.7; 9.23.1.13; 9.23.1.19; 9.23.1.22—No fix listedCNA
CiscoCisco Secure Firewall Threat Defense (FTD) Software6.4.0; 6.4.0.1; 6.4.0.3; 6.4.0.2; 6.4.0.4; 6.4.0.5; 6.4.0.6; 6.4.0.7; 6.4.0.8; 6.4.0.9; 6.4.0.10; 6.4.0.11; 6.4.0.12; 6.4.0.13; 6.4.0.14; 6.4.0.15; 6.4.0.16; 6.4.0.17; 6.4.0.18; 7.0.0; 7.0.0.1; 7.0.1; 7.0.1.1; 7.0.2; 7.0.2.1; 7.0.3; 7.0.4; 7.0.5; 7.0.6; 7.0.6.1; 7.0.6.2; 7.0.6.3; 7.0.7; 7.0.8; 7.0.8.1; 7.1.0; 7.1.0.1; 7.1.0.2; 7.1.0.3; 7.2.0; 7.2.0.1; 7.2.1; 7.2.2; 7.2.3; 7.2.4; 7.2.4.1; 7.2.5; 7.2.5.1; 7.2.6; 7.2.7; 7.2.5.2; 7.2.8; 7.2.8.1; 7.2.9; 7.2.10; 7.2.10.2; 7.3.0; 7.3.1; 7.3.1.1; 7.3.1.2; 7.4.0; 7.4.1; 7.4.1.1; 7.4.2; 7.4.2.1; 7.4.2.2; 7.4.2.3; 7.4.2.4; 7.4.3; 7.6.0; 7.6.1; 7.6.2; 7.6.2.1; 7.7.0; 7.7.10; 7.7.10.1—No fix listedCNA
  • Cisco Secure Firewall Adaptive Security Appliance (ASA) Software VendorCisco Affected 9.12.1; 9.12.1.2; 9.12.1.3; 9.12.2; 9.12.2.4; 9.12.2.5; 9.12.2.9; 9.12.3; 9.12.3.2; 9.12.3.7; 9.12.4; 9.12.3.12; 9.12.3.9; 9.12.2.1; 9.12.4.2; 9.12.4.4; 9.12.4.7; 9.12.4.10; 9.12.4.13; 9.12.4.8; 9.12.4.18; 9.12.4.24; 9.12.4.26; 9.12.4.29; 9.12.4.30; 9.12.4.35; 9.12.4.37; 9.12.4.38; 9.12.4.39; 9.12.4.40; 9.12.4.41; 9.12.4.47; 9.12.4.48; 9.12.4.50; 9.12.4.52; 9.12.4.54; 9.12.4.55; 9.12.4.56; 9.12.4.58; 9.12.4.62; 9.12.4.65; 9.12.4.67; 9.16.1; 9.16.1.28; 9.16.2; 9.16.2.3; 9.16.2.7; 9.16.2.11; 9.16.2.13; 9.16.2.14; 9.16.3; 9.16.3.3; 9.16.3.14; 9.16.3.15; 9.16.3.19; 9.16.3.23; 9.16.4; 9.16.4.9; 9.16.4.14; 9.16.4.19; 9.16.4.27; 9.16.4.38; 9.16.4.39; 9.16.4.42; 9.16.4.48; 9.16.4.55; 9.16.4.57; 9.16.4.61; 9.16.4.62; 9.16.4.67; 9.16.4.70; 9.16.4.71; 9.16.4.76; 9.16.4.82; 9.16.4.84; 9.16.4.85; 9.17.1; 9.17.1.7; 9.17.1.9; 9.17.1.10; 9.17.1.11; 9.17.1.13; 9.17.1.15; 9.17.1.20; 9.17.1.30; 9.17.1.33; 9.17.1.39; 9.17.1.45; 9.17.1.46; 9.18.1; 9.18.1.3; 9.18.2; 9.18.2.5; 9.18.2.7; 9.18.2.8; 9.18.3; 9.18.3.39; 9.18.3.46; 9.18.3.53; 9.18.3.55; 9.18.3.56; 9.18.4; 9.18.4.5; 9.18.4.8; 9.18.4.22; 9.18.4.24; 9.18.4.29; 9.18.4.34; 9.18.4.40; 9.18.4.47; 9.18.4.50; 9.18.4.52; 9.18.4.53; 9.18.4.57; 9.18.4.66; 9.18.4.67; 9.18.4.68; 9.19.1; 9.19.1.5; 9.19.1.9; 9.19.1.12; 9.19.1.18; 9.19.1.22; 9.19.1.24; 9.19.1.27; 9.19.1.28; 9.19.1.31; 9.19.1.37; 9.19.1.38; 9.19.1.42; 9.20.1; 9.20.1.5; 9.20.2; 9.20.2.10; 9.20.2.21; 9.20.2.22; 9.20.3; 9.20.3.4; 9.20.3.7; 9.20.3.9; 9.20.3.10; 9.20.3.13; 9.20.3.16; 9.20.3.20; 9.20.4; 9.20.4.7; 9.20.4.10; 9.20.4.14; 9.22.1.1; 9.22.1.3; 9.22.1.2; 9.22.1.6; 9.22.2; 9.22.2.4; 9.22.2.9; 9.22.2.13; 9.22.2.14; 9.23.1; 9.23.1.3; 9.23.1.7; 9.23.1.13; 9.23.1.19; 9.23.1.22 Fixed in — No fix listed CNA
  • Cisco Secure Firewall Threat Defense (FTD) Software VendorCisco Affected 6.4.0; 6.4.0.1; 6.4.0.3; 6.4.0.2; 6.4.0.4; 6.4.0.5; 6.4.0.6; 6.4.0.7; 6.4.0.8; 6.4.0.9; 6.4.0.10; 6.4.0.11; 6.4.0.12; 6.4.0.13; 6.4.0.14; 6.4.0.15; 6.4.0.16; 6.4.0.17; 6.4.0.18; 7.0.0; 7.0.0.1; 7.0.1; 7.0.1.1; 7.0.2; 7.0.2.1; 7.0.3; 7.0.4; 7.0.5; 7.0.6; 7.0.6.1; 7.0.6.2; 7.0.6.3; 7.0.7; 7.0.8; 7.0.8.1; 7.1.0; 7.1.0.1; 7.1.0.2; 7.1.0.3; 7.2.0; 7.2.0.1; 7.2.1; 7.2.2; 7.2.3; 7.2.4; 7.2.4.1; 7.2.5; 7.2.5.1; 7.2.6; 7.2.7; 7.2.5.2; 7.2.8; 7.2.8.1; 7.2.9; 7.2.10; 7.2.10.2; 7.3.0; 7.3.1; 7.3.1.1; 7.3.1.2; 7.4.0; 7.4.1; 7.4.1.1; 7.4.2; 7.4.2.1; 7.4.2.2; 7.4.2.3; 7.4.2.4; 7.4.3; 7.6.0; 7.6.1; 7.6.2; 7.6.2.1; 7.7.0; 7.7.10; 7.7.10.1 Fixed in — No fix listed CNA

CPE configurations NVD · 77

CPEVersionsRoleVendor
cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*9.12.1 – 9.12.4.67; 9.16.1 – 9.16.4.85; 9.17.1 – 9.17.1.46; 9.18.1 – 9.18.4.68; 9.19.1 – 9.19.1.42; 9.20.1 – 9.20.4.14; 9.22.1.1 – 9.22.2.14; 9.23.1 – 9.23.1.22VulnerableCisco
cpe:2.3:a:cisco:secure_firewall_threat_defense:6.4.0:*:*:*:*:*:*:*6.4.0VulnerableCisco
cpe:2.3:a:cisco:secure_firewall_threat_defense:6.4.0.1:*:*:*:*:*:*:*6.4.0.1VulnerableCisco
cpe:2.3:a:cisco:secure_firewall_threat_defense:6.4.0.2:*:*:*:*:*:*:*6.4.0.2VulnerableCisco
cpe:2.3:a:cisco:secure_firewall_threat_defense:6.4.0.3:*:*:*:*:*:*:*6.4.0.3VulnerableCisco
cpe:2.3:a:cisco:secure_firewall_threat_defense:6.4.0.4:*:*:*:*:*:*:*6.4.0.4VulnerableCisco
cpe:2.3:a:cisco:secure_firewall_threat_defense:6.4.0.5:*:*:*:*:*:*:*6.4.0.5VulnerableCisco
cpe:2.3:a:cisco:secure_firewall_threat_defense:6.4.0.6:*:*:*:*:*:*:*6.4.0.6VulnerableCisco
cpe:2.3:a:cisco:secure_firewall_threat_defense:6.4.0.7:*:*:*:*:*:*:*6.4.0.7VulnerableCisco
cpe:2.3:a:cisco:secure_firewall_threat_defense:6.4.0.8:*:*:*:*:*:*:*6.4.0.8VulnerableCisco
  • cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:* Versions 9.12.1 – 9.12.4.67; 9.16.1 – 9.16.4.85; 9.17.1 – 9.17.1.46; 9.18.1 – 9.18.4.68; 9.19.1 – 9.19.1.42; 9.20.1 – 9.20.4.14; 9.22.1.1 – 9.22.2.14; 9.23.1 – 9.23.1.22 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:secure_firewall_threat_defense:6.4.0:*:*:*:*:*:*:* Versions 6.4.0 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:secure_firewall_threat_defense:6.4.0.1:*:*:*:*:*:*:* Versions 6.4.0.1 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:secure_firewall_threat_defense:6.4.0.2:*:*:*:*:*:*:* Versions 6.4.0.2 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:secure_firewall_threat_defense:6.4.0.3:*:*:*:*:*:*:* Versions 6.4.0.3 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:secure_firewall_threat_defense:6.4.0.4:*:*:*:*:*:*:* Versions 6.4.0.4 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:secure_firewall_threat_defense:6.4.0.5:*:*:*:*:*:*:* Versions 6.4.0.5 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:secure_firewall_threat_defense:6.4.0.6:*:*:*:*:*:*:* Versions 6.4.0.6 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:secure_firewall_threat_defense:6.4.0.7:*:*:*:*:*:*:* Versions 6.4.0.7 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:secure_firewall_threat_defense:6.4.0.8:*:*:*:*:*:*:* Versions 6.4.0.8 Vulnerable ·Cisco
Show 67 more CPE
CPEVersionsRoleVendor
cpe:2.3:a:cisco:secure_firewall_threat_defense:6.4.0.9:*:*:*:*:*:*:*6.4.0.9VulnerableCisco
cpe:2.3:a:cisco:secure_firewall_threat_defense:6.4.0.10:*:*:*:*:*:*:*6.4.0.10VulnerableCisco
cpe:2.3:a:cisco:secure_firewall_threat_defense:6.4.0.11:*:*:*:*:*:*:*6.4.0.11VulnerableCisco
cpe:2.3:a:cisco:secure_firewall_threat_defense:6.4.0.12:*:*:*:*:*:*:*6.4.0.12VulnerableCisco
cpe:2.3:a:cisco:secure_firewall_threat_defense:6.4.0.13:*:*:*:*:*:*:*6.4.0.13VulnerableCisco
cpe:2.3:a:cisco:secure_firewall_threat_defense:6.4.0.14:*:*:*:*:*:*:*6.4.0.14VulnerableCisco
cpe:2.3:a:cisco:secure_firewall_threat_defense:6.4.0.15:*:*:*:*:*:*:*6.4.0.15VulnerableCisco
cpe:2.3:a:cisco:secure_firewall_threat_defense:6.4.0.16:*:*:*:*:*:*:*6.4.0.16VulnerableCisco
cpe:2.3:a:cisco:secure_firewall_threat_defense:6.4.0.17:*:*:*:*:*:*:*6.4.0.17VulnerableCisco
cpe:2.3:a:cisco:secure_firewall_threat_defense:6.4.0.18:*:*:*:*:*:*:*6.4.0.18VulnerableCisco
cpe:2.3:a:cisco:secure_firewall_threat_defense:7.0.0:*:*:*:*:*:*:*7.0.0VulnerableCisco
cpe:2.3:a:cisco:secure_firewall_threat_defense:7.0.0.1:*:*:*:*:*:*:*7.0.0.1VulnerableCisco
cpe:2.3:a:cisco:secure_firewall_threat_defense:7.0.1:*:*:*:*:*:*:*7.0.1VulnerableCisco
cpe:2.3:a:cisco:secure_firewall_threat_defense:7.0.1.1:*:*:*:*:*:*:*7.0.1.1VulnerableCisco
cpe:2.3:a:cisco:secure_firewall_threat_defense:7.0.2:*:*:*:*:*:*:*7.0.2VulnerableCisco
cpe:2.3:a:cisco:secure_firewall_threat_defense:7.0.2.1:*:*:*:*:*:*:*7.0.2.1VulnerableCisco
cpe:2.3:a:cisco:secure_firewall_threat_defense:7.0.3:*:*:*:*:*:*:*7.0.3VulnerableCisco
cpe:2.3:a:cisco:secure_firewall_threat_defense:7.0.4:*:*:*:*:*:*:*7.0.4VulnerableCisco
cpe:2.3:a:cisco:secure_firewall_threat_defense:7.0.5:*:*:*:*:*:*:*7.0.5VulnerableCisco
cpe:2.3:a:cisco:secure_firewall_threat_defense:7.0.6:*:*:*:*:*:*:*7.0.6VulnerableCisco
cpe:2.3:a:cisco:secure_firewall_threat_defense:7.0.6.1:*:*:*:*:*:*:*7.0.6.1VulnerableCisco
cpe:2.3:a:cisco:secure_firewall_threat_defense:7.0.6.2:*:*:*:*:*:*:*7.0.6.2VulnerableCisco
cpe:2.3:a:cisco:secure_firewall_threat_defense:7.0.6.3:*:*:*:*:*:*:*7.0.6.3VulnerableCisco
cpe:2.3:a:cisco:secure_firewall_threat_defense:7.0.7:*:*:*:*:*:*:*7.0.7VulnerableCisco
cpe:2.3:a:cisco:secure_firewall_threat_defense:7.0.8:*:*:*:*:*:*:*7.0.8VulnerableCisco
cpe:2.3:a:cisco:secure_firewall_threat_defense:7.0.8.1:*:*:*:*:*:*:*7.0.8.1VulnerableCisco
cpe:2.3:a:cisco:secure_firewall_threat_defense:7.1.0:*:*:*:*:*:*:*7.1.0VulnerableCisco
cpe:2.3:a:cisco:secure_firewall_threat_defense:7.1.0.1:*:*:*:*:*:*:*7.1.0.1VulnerableCisco
cpe:2.3:a:cisco:secure_firewall_threat_defense:7.1.0.2:*:*:*:*:*:*:*7.1.0.2VulnerableCisco
cpe:2.3:a:cisco:secure_firewall_threat_defense:7.1.0.3:*:*:*:*:*:*:*7.1.0.3VulnerableCisco
cpe:2.3:a:cisco:secure_firewall_threat_defense:7.2.0:*:*:*:*:*:*:*7.2.0VulnerableCisco
cpe:2.3:a:cisco:secure_firewall_threat_defense:7.2.0.1:*:*:*:*:*:*:*7.2.0.1VulnerableCisco
cpe:2.3:a:cisco:secure_firewall_threat_defense:7.2.1:*:*:*:*:*:*:*7.2.1VulnerableCisco
cpe:2.3:a:cisco:secure_firewall_threat_defense:7.2.2:*:*:*:*:*:*:*7.2.2VulnerableCisco
cpe:2.3:a:cisco:secure_firewall_threat_defense:7.2.3:*:*:*:*:*:*:*7.2.3VulnerableCisco
cpe:2.3:a:cisco:secure_firewall_threat_defense:7.2.4:*:*:*:*:*:*:*7.2.4VulnerableCisco
cpe:2.3:a:cisco:secure_firewall_threat_defense:7.2.4.1:*:*:*:*:*:*:*7.2.4.1VulnerableCisco
cpe:2.3:a:cisco:secure_firewall_threat_defense:7.2.5:*:*:*:*:*:*:*7.2.5VulnerableCisco
cpe:2.3:a:cisco:secure_firewall_threat_defense:7.2.5.1:*:*:*:*:*:*:*7.2.5.1VulnerableCisco
cpe:2.3:a:cisco:secure_firewall_threat_defense:7.2.5.2:*:*:*:*:*:*:*7.2.5.2VulnerableCisco
cpe:2.3:a:cisco:secure_firewall_threat_defense:7.2.6:*:*:*:*:*:*:*7.2.6VulnerableCisco
cpe:2.3:a:cisco:secure_firewall_threat_defense:7.2.7:*:*:*:*:*:*:*7.2.7VulnerableCisco
cpe:2.3:a:cisco:secure_firewall_threat_defense:7.2.8:*:*:*:*:*:*:*7.2.8VulnerableCisco
cpe:2.3:a:cisco:secure_firewall_threat_defense:7.2.8.1:*:*:*:*:*:*:*7.2.8.1VulnerableCisco
cpe:2.3:a:cisco:secure_firewall_threat_defense:7.2.9:*:*:*:*:*:*:*7.2.9VulnerableCisco
cpe:2.3:a:cisco:secure_firewall_threat_defense:7.2.10:*:*:*:*:*:*:*7.2.10VulnerableCisco
cpe:2.3:a:cisco:secure_firewall_threat_defense:7.2.10.2:*:*:*:*:*:*:*7.2.10.2VulnerableCisco
cpe:2.3:a:cisco:secure_firewall_threat_defense:7.3.0:*:*:*:*:*:*:*7.3.0VulnerableCisco
cpe:2.3:a:cisco:secure_firewall_threat_defense:7.3.1:*:*:*:*:*:*:*7.3.1VulnerableCisco
cpe:2.3:a:cisco:secure_firewall_threat_defense:7.3.1.1:*:*:*:*:*:*:*7.3.1.1VulnerableCisco
cpe:2.3:a:cisco:secure_firewall_threat_defense:7.3.1.2:*:*:*:*:*:*:*7.3.1.2VulnerableCisco
cpe:2.3:a:cisco:secure_firewall_threat_defense:7.4.0:*:*:*:*:*:*:*7.4.0VulnerableCisco
cpe:2.3:a:cisco:secure_firewall_threat_defense:7.4.1:*:*:*:*:*:*:*7.4.1VulnerableCisco
cpe:2.3:a:cisco:secure_firewall_threat_defense:7.4.1.1:*:*:*:*:*:*:*7.4.1.1VulnerableCisco
cpe:2.3:a:cisco:secure_firewall_threat_defense:7.4.2:*:*:*:*:*:*:*7.4.2VulnerableCisco
cpe:2.3:a:cisco:secure_firewall_threat_defense:7.4.2.1:*:*:*:*:*:*:*7.4.2.1VulnerableCisco
cpe:2.3:a:cisco:secure_firewall_threat_defense:7.4.2.2:*:*:*:*:*:*:*7.4.2.2VulnerableCisco
cpe:2.3:a:cisco:secure_firewall_threat_defense:7.4.2.3:*:*:*:*:*:*:*7.4.2.3VulnerableCisco
cpe:2.3:a:cisco:secure_firewall_threat_defense:7.4.2.4:*:*:*:*:*:*:*7.4.2.4VulnerableCisco
cpe:2.3:a:cisco:secure_firewall_threat_defense:7.4.3:*:*:*:*:*:*:*7.4.3VulnerableCisco
cpe:2.3:a:cisco:secure_firewall_threat_defense:7.6.0:*:*:*:*:*:*:*7.6.0VulnerableCisco
cpe:2.3:a:cisco:secure_firewall_threat_defense:7.6.1:*:*:*:*:*:*:*7.6.1VulnerableCisco
cpe:2.3:a:cisco:secure_firewall_threat_defense:7.6.2:*:*:*:*:*:*:*7.6.2VulnerableCisco
cpe:2.3:a:cisco:secure_firewall_threat_defense:7.6.2.1:*:*:*:*:*:*:*7.6.2.1VulnerableCisco
cpe:2.3:a:cisco:secure_firewall_threat_defense:7.7.0:*:*:*:*:*:*:*7.7.0VulnerableCisco
cpe:2.3:a:cisco:secure_firewall_threat_defense:7.7.10:*:*:*:*:*:*:*7.7.10VulnerableCisco
cpe:2.3:a:cisco:secure_firewall_threat_defense:7.7.10.1:*:*:*:*:*:*:*7.7.10.1VulnerableCisco
  • cpe:2.3:a:cisco:secure_firewall_threat_defense:6.4.0.9:*:*:*:*:*:*:* Versions 6.4.0.9 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:secure_firewall_threat_defense:6.4.0.10:*:*:*:*:*:*:* Versions 6.4.0.10 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:secure_firewall_threat_defense:6.4.0.11:*:*:*:*:*:*:* Versions 6.4.0.11 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:secure_firewall_threat_defense:6.4.0.12:*:*:*:*:*:*:* Versions 6.4.0.12 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:secure_firewall_threat_defense:6.4.0.13:*:*:*:*:*:*:* Versions 6.4.0.13 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:secure_firewall_threat_defense:6.4.0.14:*:*:*:*:*:*:* Versions 6.4.0.14 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:secure_firewall_threat_defense:6.4.0.15:*:*:*:*:*:*:* Versions 6.4.0.15 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:secure_firewall_threat_defense:6.4.0.16:*:*:*:*:*:*:* Versions 6.4.0.16 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:secure_firewall_threat_defense:6.4.0.17:*:*:*:*:*:*:* Versions 6.4.0.17 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:secure_firewall_threat_defense:6.4.0.18:*:*:*:*:*:*:* Versions 6.4.0.18 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:secure_firewall_threat_defense:7.0.0:*:*:*:*:*:*:* Versions 7.0.0 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:secure_firewall_threat_defense:7.0.0.1:*:*:*:*:*:*:* Versions 7.0.0.1 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:secure_firewall_threat_defense:7.0.1:*:*:*:*:*:*:* Versions 7.0.1 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:secure_firewall_threat_defense:7.0.1.1:*:*:*:*:*:*:* Versions 7.0.1.1 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:secure_firewall_threat_defense:7.0.2:*:*:*:*:*:*:* Versions 7.0.2 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:secure_firewall_threat_defense:7.0.2.1:*:*:*:*:*:*:* Versions 7.0.2.1 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:secure_firewall_threat_defense:7.0.3:*:*:*:*:*:*:* Versions 7.0.3 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:secure_firewall_threat_defense:7.0.4:*:*:*:*:*:*:* Versions 7.0.4 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:secure_firewall_threat_defense:7.0.5:*:*:*:*:*:*:* Versions 7.0.5 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:secure_firewall_threat_defense:7.0.6:*:*:*:*:*:*:* Versions 7.0.6 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:secure_firewall_threat_defense:7.0.6.1:*:*:*:*:*:*:* Versions 7.0.6.1 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:secure_firewall_threat_defense:7.0.6.2:*:*:*:*:*:*:* Versions 7.0.6.2 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:secure_firewall_threat_defense:7.0.6.3:*:*:*:*:*:*:* Versions 7.0.6.3 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:secure_firewall_threat_defense:7.0.7:*:*:*:*:*:*:* Versions 7.0.7 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:secure_firewall_threat_defense:7.0.8:*:*:*:*:*:*:* Versions 7.0.8 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:secure_firewall_threat_defense:7.0.8.1:*:*:*:*:*:*:* Versions 7.0.8.1 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:secure_firewall_threat_defense:7.1.0:*:*:*:*:*:*:* Versions 7.1.0 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:secure_firewall_threat_defense:7.1.0.1:*:*:*:*:*:*:* Versions 7.1.0.1 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:secure_firewall_threat_defense:7.1.0.2:*:*:*:*:*:*:* Versions 7.1.0.2 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:secure_firewall_threat_defense:7.1.0.3:*:*:*:*:*:*:* Versions 7.1.0.3 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:secure_firewall_threat_defense:7.2.0:*:*:*:*:*:*:* Versions 7.2.0 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:secure_firewall_threat_defense:7.2.0.1:*:*:*:*:*:*:* Versions 7.2.0.1 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:secure_firewall_threat_defense:7.2.1:*:*:*:*:*:*:* Versions 7.2.1 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:secure_firewall_threat_defense:7.2.2:*:*:*:*:*:*:* Versions 7.2.2 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:secure_firewall_threat_defense:7.2.3:*:*:*:*:*:*:* Versions 7.2.3 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:secure_firewall_threat_defense:7.2.4:*:*:*:*:*:*:* Versions 7.2.4 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:secure_firewall_threat_defense:7.2.4.1:*:*:*:*:*:*:* Versions 7.2.4.1 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:secure_firewall_threat_defense:7.2.5:*:*:*:*:*:*:* Versions 7.2.5 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:secure_firewall_threat_defense:7.2.5.1:*:*:*:*:*:*:* Versions 7.2.5.1 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:secure_firewall_threat_defense:7.2.5.2:*:*:*:*:*:*:* Versions 7.2.5.2 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:secure_firewall_threat_defense:7.2.6:*:*:*:*:*:*:* Versions 7.2.6 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:secure_firewall_threat_defense:7.2.7:*:*:*:*:*:*:* Versions 7.2.7 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:secure_firewall_threat_defense:7.2.8:*:*:*:*:*:*:* Versions 7.2.8 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:secure_firewall_threat_defense:7.2.8.1:*:*:*:*:*:*:* Versions 7.2.8.1 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:secure_firewall_threat_defense:7.2.9:*:*:*:*:*:*:* Versions 7.2.9 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:secure_firewall_threat_defense:7.2.10:*:*:*:*:*:*:* Versions 7.2.10 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:secure_firewall_threat_defense:7.2.10.2:*:*:*:*:*:*:* Versions 7.2.10.2 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:secure_firewall_threat_defense:7.3.0:*:*:*:*:*:*:* Versions 7.3.0 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:secure_firewall_threat_defense:7.3.1:*:*:*:*:*:*:* Versions 7.3.1 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:secure_firewall_threat_defense:7.3.1.1:*:*:*:*:*:*:* Versions 7.3.1.1 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:secure_firewall_threat_defense:7.3.1.2:*:*:*:*:*:*:* Versions 7.3.1.2 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:secure_firewall_threat_defense:7.4.0:*:*:*:*:*:*:* Versions 7.4.0 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:secure_firewall_threat_defense:7.4.1:*:*:*:*:*:*:* Versions 7.4.1 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:secure_firewall_threat_defense:7.4.1.1:*:*:*:*:*:*:* Versions 7.4.1.1 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:secure_firewall_threat_defense:7.4.2:*:*:*:*:*:*:* Versions 7.4.2 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:secure_firewall_threat_defense:7.4.2.1:*:*:*:*:*:*:* Versions 7.4.2.1 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:secure_firewall_threat_defense:7.4.2.2:*:*:*:*:*:*:* Versions 7.4.2.2 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:secure_firewall_threat_defense:7.4.2.3:*:*:*:*:*:*:* Versions 7.4.2.3 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:secure_firewall_threat_defense:7.4.2.4:*:*:*:*:*:*:* Versions 7.4.2.4 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:secure_firewall_threat_defense:7.4.3:*:*:*:*:*:*:* Versions 7.4.3 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:secure_firewall_threat_defense:7.6.0:*:*:*:*:*:*:* Versions 7.6.0 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:secure_firewall_threat_defense:7.6.1:*:*:*:*:*:*:* Versions 7.6.1 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:secure_firewall_threat_defense:7.6.2:*:*:*:*:*:*:* Versions 7.6.2 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:secure_firewall_threat_defense:7.6.2.1:*:*:*:*:*:*:* Versions 7.6.2.1 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:secure_firewall_threat_defense:7.7.0:*:*:*:*:*:*:* Versions 7.7.0 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:secure_firewall_threat_defense:7.7.10:*:*:*:*:*:*:* Versions 7.7.10 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:secure_firewall_threat_defense:7.7.10.1:*:*:*:*:*:*:* Versions 7.7.10.1 Vulnerable ·Cisco

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-20021
  2. 2026-10-03 Alias added: GHSA-qjf3-5p7q-6r9m

References

Advisory 1

  • TI-2025-14628 Buffer overflow in Cisco Secure Firewall Adaptive Security Appliance Software KEVCVSS 3.1CRITICAL 9.9
  • TI-2016-05454 Buffer overflow in Cisco Adaptive Security Appliance (ASA) Software through 9.4.2.3 on… KEVCVSS 3.1HIGH 8.8
  • TI-2023-06973 Authentication bypass in Cisco Adaptive Security Appliance Software KEVCVSS 3.1CRITICAL 9.1
  • TI-2026-82192 Denial of service in Cisco Secure Firewall ASA and FTD SSL VPN KEVCVSS 3.1HIGH 8.6
  • TI-2026-16533 Cisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense… KEVCVSS 3.1HIGH 8.6
  • TI-2025-14657 Missing authorization in Cisco Secure Firewall Adaptive Security Appliance Software KEVCVSS 3.1HIGH 8.6
See all 354 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences