CVE-2025-20254

CWE-401 — Memory LeakCWE-8354 documents4 sources
Severity
5.8MEDIUM
EPSS
0.1%
top 71.44%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Cisco Cisco Adaptive Security Appliance (asa) SoftwareCisco Cisco Firepower Threat Defense Software
Timeline
PublishedAug 14

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. …

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:LExploitability: 3.9 | Impact: 1.4

Affected Packages2 packages

🔴Vulnerability Details

2
GHSA
GHSA-rxfw-48wv-x4rf: A vulnerability in the Internet Key Exchange Version 2 (IKEv2) module of Cisco Secure Firewall Adaptive Security Appliance (ASA) Software and Secure F↗2025-08-14
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CVEList
CVE-2025-20254: A vulnerability in the Internet Key Exchange Version 2 (IKEv2) module of Cisco Secure Firewall Adaptive Security Appliance (ASA) Software and Secure F↗2025-08-14
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📋Vendor Advisories

1
Cisco
Cisco IOS, IOS XE, Secure Firewall Adaptive Security Appliance, and Secure Firewall Threat Defense Software IKEv2 Denial of Service Vulnerabilities↗2025-08-14
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CVE-2025-20254 (MEDIUM CVSS 5.8) | A vulnerability in the Internet Key | cvebase.io