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TI-2025-14628 Aliases CVE-2025-20333GHSA-vg93-6w2x-3cvp

Buffer overflow in Cisco Secure Firewall Adaptive Security Appliance Software

Priority CRITICAL 100Exploited in the wildCWE-120Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-120 and the CVSS impact.

Summary

A vulnerability in the VPN web server of Cisco Secure Firewall Adaptive Security Appliance (ASA) Software and Cisco Secure Firewall Threat Defense (FTD) Software could allow an authenticated, remote attacker to execute arbitrary code on an affected device. This vulnerability is due to improper validation of user-supplied input in HTTP(S) requests. An attacker with valid VPN user credentials could exploit this vulnerability by sending crafted HTTP requests to an affected device. A successful exploit could allow the attacker to execute arbitrary code as root, possibly resulting in the complete compromise of the affected device.

Why it matters now

Exploitation Active In CISA KEV since 2025-09-25CISA due date 2025-09-26
EPSS 0.72037 99th 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
Active
Automatable
No
Technical impact
Total

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) Software9.8.1; 9.8.1.5; 9.8.1.7; 9.8.2; 9.8.2.8; 9.8.2.14; 9.8.2.15; 9.8.2.17; 9.8.2.20; 9.8.2.24; 9.8.2.26; 9.8.2.28; 9.8.2.33; 9.8.2.35; 9.8.2.38; 9.8.3.8; 9.8.3.11; 9.8.3.14; 9.8.3.16; 9.8.3.18; 9.8.3.21; 9.8.3; 9.8.3.26; 9.8.3.29; 9.8.4; 9.8.4.3; 9.8.4.7; 9.8.4.8; 9.8.4.10; 9.8.4.12; 9.8.4.15; 9.8.4.17; 9.8.2.45; 9.8.4.25; 9.8.4.20; 9.8.4.22; 9.8.4.26; 9.8.4.29; 9.8.4.32; 9.8.4.33; 9.8.4.34; 9.8.4.35; 9.8.4.39; 9.8.4.40; 9.8.4.41; 9.8.4.43; 9.8.4.44; 9.8.4.45; 9.8.4.46; 9.8.4.48; 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; 9.14.1; 9.14.1.10; 9.14.1.6; 9.14.1.15; 9.14.1.19; 9.14.1.30; 9.14.2; 9.14.2.4; 9.14.2.8; 9.14.2.13; 9.14.2.15; 9.14.3; 9.14.3.1; 9.14.3.9; 9.14.3.11; 9.14.3.13; 9.14.3.18; 9.14.3.15; 9.14.4; 9.14.4.6; 9.14.4.7; 9.14.4.12; 9.14.4.13; 9.14.4.14; 9.14.4.15; 9.14.4.17; 9.14.4.22; 9.14.4.23; 9.14.4.24; 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; 9.16.4.18; 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; 9.17.1; 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; 9.18.1; 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; 9.19.1; 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; 9.20.1; 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; 9.22.1.1; 9.22.1.2—No fix listedCNA
CiscoCisco Secure Firewall Threat Defense (FTD) Software6.2.3; 6.2.3.1; 6.2.3.2; 6.2.3.3; 6.2.3.4; 6.2.3.5; 6.2.3.6; 6.2.3.7; 6.2.3.8; 6.2.3.10; 6.2.3.11; 6.2.3.9; 6.2.3.12; 6.2.3.13; 6.2.3.14; 6.2.3.15; 6.2.3.16; 6.2.3.17; 6.2.3.18; 6.6.0; 6.6.0.1; 6.6.1; 6.6.3; 6.6.4; 6.6.5; 6.6.5.1; 6.6.5.2; 6.6.7; 6.6.7.1; 6.6.7.2; 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; 7.1.0; 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; 7.3.0; 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; 7.6.0—No fix listedCNA
  • Cisco Secure Firewall Adaptive Security Appliance (ASA) Software VendorCisco Affected 9.8.1; 9.8.1.5; 9.8.1.7; 9.8.2; 9.8.2.8; 9.8.2.14; 9.8.2.15; 9.8.2.17; 9.8.2.20; 9.8.2.24; 9.8.2.26; 9.8.2.28; 9.8.2.33; 9.8.2.35; 9.8.2.38; 9.8.3.8; 9.8.3.11; 9.8.3.14; 9.8.3.16; 9.8.3.18; 9.8.3.21; 9.8.3; 9.8.3.26; 9.8.3.29; 9.8.4; 9.8.4.3; 9.8.4.7; 9.8.4.8; 9.8.4.10; 9.8.4.12; 9.8.4.15; 9.8.4.17; 9.8.2.45; 9.8.4.25; 9.8.4.20; 9.8.4.22; 9.8.4.26; 9.8.4.29; 9.8.4.32; 9.8.4.33; 9.8.4.34; 9.8.4.35; 9.8.4.39; 9.8.4.40; 9.8.4.41; 9.8.4.43; 9.8.4.44; 9.8.4.45; 9.8.4.46; 9.8.4.48; 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; 9.14.1; 9.14.1.10; 9.14.1.6; 9.14.1.15; 9.14.1.19; 9.14.1.30; 9.14.2; 9.14.2.4; 9.14.2.8; 9.14.2.13; 9.14.2.15; 9.14.3; 9.14.3.1; 9.14.3.9; 9.14.3.11; 9.14.3.13; 9.14.3.18; 9.14.3.15; 9.14.4; 9.14.4.6; 9.14.4.7; 9.14.4.12; 9.14.4.13; 9.14.4.14; 9.14.4.15; 9.14.4.17; 9.14.4.22; 9.14.4.23; 9.14.4.24; 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; 9.16.4.18; 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; 9.17.1; 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; 9.18.1; 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; 9.19.1; 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; 9.20.1; 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; 9.22.1.1; 9.22.1.2 Fixed in — No fix listed CNA
  • Cisco Secure Firewall Threat Defense (FTD) Software VendorCisco Affected 6.2.3; 6.2.3.1; 6.2.3.2; 6.2.3.3; 6.2.3.4; 6.2.3.5; 6.2.3.6; 6.2.3.7; 6.2.3.8; 6.2.3.10; 6.2.3.11; 6.2.3.9; 6.2.3.12; 6.2.3.13; 6.2.3.14; 6.2.3.15; 6.2.3.16; 6.2.3.17; 6.2.3.18; 6.6.0; 6.6.0.1; 6.6.1; 6.6.3; 6.6.4; 6.6.5; 6.6.5.1; 6.6.5.2; 6.6.7; 6.6.7.1; 6.6.7.2; 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; 7.1.0; 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; 7.3.0; 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; 7.6.0 Fixed in — No fix listed CNA

CPE configurations NVD · 3

CPEVersionsRoleVendor
cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*9.12 to before 9.12.4.72; 9.14 to before 9.14.4.28; 9.16 to before 9.16.4.85; 9.17.0 to before 9.17.1.45; 9.18 to before 9.18.4.47; 9.19 to before 9.19.1.37; 9.20 to before 9.20.3.7; 9.22 to before 9.22.1.3VulnerableCisco
cpe:2.3:a:cisco:secure_firewall_threat_defense:*:*:*:*:*:*:*:*7.0.0 to before 7.0.8.1; 7.1.0 to before 7.2.9; 7.3.0 to before 7.4.2.4VulnerableCisco
cpe:2.3:a:cisco:secure_firewall_threat_defense:7.6.0:*:*:*:*:*:*:*7.6.0VulnerableCisco
  • cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:* Versions 9.12 to before 9.12.4.72; 9.14 to before 9.14.4.28; 9.16 to before 9.16.4.85; 9.17.0 to before 9.17.1.45; 9.18 to before 9.18.4.47; 9.19 to before 9.19.1.37; 9.20 to before 9.20.3.7; 9.22 to before 9.22.1.3 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:secure_firewall_threat_defense:*:*:*:*:*:*:*:* Versions 7.0.0 to before 7.0.8.1; 7.1.0 to before 7.2.9; 7.3.0 to before 7.4.2.4 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:secure_firewall_threat_defense:7.6.0:*:*:*:*:*:*:* Versions 7.6.0 Vulnerable ·Cisco

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2025-09-25 Added to CISA KEV
  2. 2026-10-02 Threatist record created from CVE-2025-20333
  3. 2026-10-03 Alias added: GHSA-vg93-6w2x-3cvp

References

Advisory 2

  • 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
  • TI-2024-13286 Infinite loop in Cisco 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