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8.6 High

CVE-2026-20250 A vulnerability in Datagram TLS (DTLS) message handling of Cisco Secure Firewall Adaptive Security Appliance (ASA)…

Description

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.

Affected products and versions

Product Affected versions Fixed in
Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.24.1 No fix stated
Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.23 9.23.1 → 9.23.1.26 No fix stated
Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.22 9.22.1.1 → 9.22.2.20 No fix stated
Cisco Secure Firewall Threat Defense (FTD) Software 10.0.0 No fix stated
Cisco Secure Firewall Threat Defense (FTD) Software 7.7 7.7.0 → 7.7.11 No fix stated
Cisco Secure Firewall Threat Defense (FTD) Software 7.6 7.6.0 → 7.6.4 No fix stated

References

Timeline

  1. Published
  2. Last modified

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