5.8
Medium
CVE-2025-20254 A vulnerability in the Internet Key Exchange Version 2 (IKEv2) module of Cisco Secure Firewall Adaptive Security…
Description
A vulnerability in the Internet Key Exchange Version 2 (IKEv2) module of Cisco Secure Firewall Adaptive Security Appliance (ASA) Software and Secure Firewall Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to trigger a memory leak, resulting in a denial of service (DoS) condition. This vulnerability is due to improper parsing of IKEv2 packets. An attacker could exploit this vulnerability by sending a continuous stream of crafted IKEv2 packets to an affected device. A successful exploit could allow the attacker to partially exhaust system memory, causing system instability like being unable to establish new IKEv2 VPN sessions. A manual reboot of the device is required to recover from this condition.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Cisco Adaptive Security Appliance (ASA) Software | 9.23.1 | No fix stated |
| Cisco Adaptive Security Appliance (ASA) Software 9.22 | 9.22.1.1 → 9.22.1.6 | No fix stated |
| Cisco Adaptive Security Appliance (ASA) Software 9.20 | 9.20.1 → 9.20.3.13 | No fix stated |
| Cisco Adaptive Security Appliance (ASA) Software 9.19 | 9.19.1 → 9.19.1.38 | No fix stated |
| Cisco Adaptive Security Appliance (ASA) Software 9.18 | 9.18.1 → 9.18.4.53 | No fix stated |
| Cisco Adaptive Security Appliance (ASA) Software 9.17 | 9.17.1 → 9.17.1.46 | No fix stated |
| Cisco Adaptive Security Appliance (ASA) Software 9.16 | 9.16.1 → 9.16.4.82 | No fix stated |
| Cisco Adaptive Security Appliance (ASA) Software 9.14 | 9.14.1 → 9.14.4.24 | No fix stated |
| Cisco Adaptive Security Appliance (ASA) Software 9.12 | 9.12.1 → 9.12.4.67 | No fix stated |
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| Product | Affected versions | Fixed in |
|---|---|---|
| Cisco Firepower Threat Defense Software | 7.7.0 | No fix stated |
| Cisco Firepower Threat Defense Software | 7.6.0 | No fix stated |
| Cisco Firepower Threat Defense Software 7.4 | 7.4.0 → 7.4.2.2 | No fix stated |
| Cisco Firepower Threat Defense Software 7.3 | 7.3.0 → 7.3.1.2 | No fix stated |
| Cisco Firepower Threat Defense Software 7.2 | 7.2.0 → 7.2.9 | No fix stated |
| Cisco Firepower Threat Defense Software 7.1 | 7.1.0 → 7.1.0.3 | No fix stated |
| Cisco Firepower Threat Defense Software 7.0 | 7.0.0 → 7.0.7 | No fix stated |
| Cisco Firepower Threat Defense Software 6.6 | 6.6.0 → 6.6.7.2 | No fix stated |
| Cisco Firepower Threat Defense Software 6.4 | 6.4.0 → 6.4.0.18 | No fix stated |
| Cisco Firepower Threat Defense Software 6.2 | 6.2.3 → 6.2.3.18 | No fix stated |
References
- cisco-sa-asa-ftd-ios-dos-DOESHWHy sec.cloudapps.cisco.com
Timeline
- Published
- Last modified
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