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8.6 High

CVE-2025-20134 A vulnerability in the certificate processing of Cisco Secure Firewall Adaptive Security Appliance (ASA) Software and…

Description

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.

Affected products and versions

Product Affected versions Fixed in
Cisco Adaptive Security Appliance (ASA) Software 9.14 9.14.4.6 → 9.14.4.24 No fix stated
Cisco Adaptive Security Appliance (ASA) Software 9.12 9.12.4.39 → 9.12.4.67 No fix stated
Cisco Firepower Threat Defense Software 6.6 6.6.5.2 → 6.6.7.2 No fix stated
Cisco Firepower Threat Defense Software 6.4 6.4.0.15 → 6.4.0.18 No fix stated

References

Timeline

  1. Published
  2. Last modified

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