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TI-2025-14434 Aliases CVE-2025-20134GHSA-wmcm-x4v8-vf3r

Double free in Cisco Adaptive Security Appliance Software

Priority MEDIUM 44CWE-415Published · 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-415 and the CVSS impact.

Summary

A vulnerability in the certificate processing of Cisco Secure Firewall Adaptive Security Appliance (ASA) Software and Cisco Secure Firewall Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause the device to reload unexpectedly, resulting in a denial of service (DoS) condition. This vulnerability is due to improper parsing of SSL/TLS certificates. An attacker could exploit this vulnerability by sending crafted DNS packets that match a static Network Address Translation (NAT) rule with DNS inspection enabled through 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 0.00432 37th 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 Adaptive Security Appliance (ASA) Software9.12.4.39; 9.12.4.40; 9.14.4.6; 9.14.4.7; 9.12.4.41; 9.12.4.47; 9.14.4.12; 9.12.4.48; 9.14.4.13; 9.12.4.50; 9.14.4.14; 9.12.4.52; 9.14.4.15; 9.12.4.54; 9.14.4.17; 9.12.4.55; 9.14.4.22; 9.14.4.23; 9.12.4.56; 9.12.4.58; 9.12.4.62; 9.12.4.65; 9.12.4.67; 9.14.4.24—No fix listedCNA
CiscoCisco Firepower Threat Defense Software6.6.5.2; 6.4.0.15; 6.6.7; 6.4.0.16; 6.6.7.1; 6.4.0.17; 6.6.7.2; 6.4.0.18—No fix listedCNA
  • Cisco Adaptive Security Appliance (ASA) Software VendorCisco Affected 9.12.4.39; 9.12.4.40; 9.14.4.6; 9.14.4.7; 9.12.4.41; 9.12.4.47; 9.14.4.12; 9.12.4.48; 9.14.4.13; 9.12.4.50; 9.14.4.14; 9.12.4.52; 9.14.4.15; 9.12.4.54; 9.14.4.17; 9.12.4.55; 9.14.4.22; 9.14.4.23; 9.12.4.56; 9.12.4.58; 9.12.4.62; 9.12.4.65; 9.12.4.67; 9.14.4.24 Fixed in — No fix listed CNA
  • Cisco Firepower Threat Defense Software VendorCisco Affected 6.6.5.2; 6.4.0.15; 6.6.7; 6.4.0.16; 6.6.7.1; 6.4.0.17; 6.6.7.2; 6.4.0.18 Fixed in — No fix listed CNA

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-20134
  2. 2026-10-03 Alias added: GHSA-wmcm-x4v8-vf3r

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