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TI-2026-16441 Aliases CVE-2026-20250GHSA-rf4g-28mq-c9qr

Cisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense…

Priority MEDIUM 44CWE-772Published · Updated

Key facts

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

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-772.

Summary

A vulnerability in Datagram TLS (DTLS) message handling of Cisco Secure Firewall Adaptive Security Appliance (ASA) Software and Cisco Secure Firewall Threat Defense (FTD) Software for Cisco Secure Firewall 3100 Series and 4200 Series devices could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to improper resource management when processing certain DTLS messages. An attacker could exploit this vulnerability by sending a crafted stream of DTLS traffic to an affected device. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00573 47th 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
Yes
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) Software9.23.1; 9.22.1.1; 9.22.1.3; 9.22.1.6; 9.22.2; 9.23.1.3; 9.22.2.4; 9.23.1.7; 9.22.2.9; 9.23.1.13; 9.22.2.13; 9.23.1.19; 9.22.2.14; 9.24.1; 9.23.1.22; 9.22.2.20; 9.23.1.26—No fix listedCNA
CiscoCisco Secure Firewall Threat Defense (FTD) Software7.6.0; 7.7.0; 7.6.1; 7.6.2; 7.7.10; 7.7.11; 7.6.2.1; 7.7.10.1; 7.6.4; 10.0.0—No fix listedCNA
  • Cisco Secure Firewall Adaptive Security Appliance (ASA) Software VendorCisco Affected 9.23.1; 9.22.1.1; 9.22.1.3; 9.22.1.6; 9.22.2; 9.23.1.3; 9.22.2.4; 9.23.1.7; 9.22.2.9; 9.23.1.13; 9.22.2.13; 9.23.1.19; 9.22.2.14; 9.24.1; 9.23.1.22; 9.22.2.20; 9.23.1.26 Fixed in — No fix listed CNA
  • Cisco Secure Firewall Threat Defense (FTD) Software VendorCisco Affected 7.6.0; 7.7.0; 7.6.1; 7.6.2; 7.7.10; 7.7.11; 7.6.2.1; 7.7.10.1; 7.6.4; 10.0.0 Fixed in — No fix listed CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:cisco:secure_firewall_threat_defense:*:*:*:*:*:*:*:*——Cisco
  • cpe:2.3:a:cisco:secure_firewall_threat_defense:*:*:*:*:*:*:*:* Versions — — ·Cisco

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-20250
  2. 2026-10-03 Alias added: GHSA-rf4g-28mq-c9qr

References

Other 1

  • TI-2026-74174 Arbitrary file write in Cisco Secure Email Gateway via AMP feature KEVCVSS 3.1CRITICAL 9.8
  • TI-2026-53490 Cisco Catalyst SD-WAN Manager System Account Authorization Bypass Vulnerability KEVCVSS 3.1CRITICAL 9.8
  • TI-2026-53489 Cisco Secure Email Gateway SQL Injection Vulnerability KEVCVSS 3.1CRITICAL 9.8
  • TI-2026-53488 Cisco Identity Services Engine Authentication Bypass Vulnerability KEVCVSS 3.1CRITICAL 10.0
  • TI-2026-16388 Cisco Catalyst SD-WAN Controller Authentication Bypass Vulnerability KEVCVSS 3.1CRITICAL 10.0
  • TI-2026-16344 Cisco Secure Firewall Management Center Software Remote Code Execution Vulnerability KEVCVSS 3.1CRITICAL 10.0
See all 7059 →

Sources

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