CVE-2025-20263 describes a buffer overflow vulnerability in the web services interface of Cisco Secure Firewall ASA Software and FTD Software, stemming from insufficient boundary checks. An unauthenticated, remote attacker can exploit this by sending a crafted HTTP request, leading to a denial of service (DoS) condition as the system reloads. This vulnerability has a high CVSS score of 8.6, indicating a network-based attack with low complexity and no user interaction required, resulting in high availability impact. While there is no evidence of active exploitation (KEV: No) and no public exploit code (Metasploit, Nuclei, ExploitDB: None), it has garnered some community discussion and media coverage, including a BleepingComputer article.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
| Cisco | Cisco Adaptive Security Appliance (ASA) Software | 9.12.1, 9.12.1.2, 9.12.1.3, 9.12.2, 9.12.2.1, 9.12.2.4, 9.12.2.5, 9.12.2.9, 9.12.3, 9.12.3.12, 9.12.3.2, 9.12.3.7, 9.12.3.9, 9.12.4, 9.12.4.10, 9.12.4.13, 9.12.4.18, 9.12.4.2, 9.12.4.24, 9.12.4.26, 9.12.4.29, 9.12.4.30, 9.12.4.35, 9.12.4.37, 9.12.4.38, 9.12.4.39, 9.12.4.4, 9.12.4.40, 9.12.4.41, 9.12.4.47, 9.12.4.48, 9.12.4.50, 9.12.4.52, 9.12.4.54, 9.12.4.55, 9.12.4.56, 9.12.4.58, 9.12.4.62, 9.12.4.65, 9.12.4.67, 9.12.4.7, 9.12.4.8, 9.14.1, 9.14.1.10, 9.14.1.15, 9.14.1.19, 9.14.1.30, 9.14.1.6, 9.14.2, 9.14.2.13, 9.14.2.15, 9.14.2.4, 9.14.2.8, 9.14.3, 9.14.3.1, 9.14.3.11, 9.14.3.13, 9.14.3.15, 9.14.3.18, 9.14.3.9, 9.14.4, 9.14.4.12, 9.14.4.13, 9.14.4.14, 9.14.4.15, 9.14.4.17, 9.14.4.22, 9.14.4.23, 9.14.4.24, 9.14.4.6, 9.14.4.7, 9.16.1, 9.16.1.28, 9.16.2, 9.16.2.11, 9.16.2.13, 9.16.2.14, 9.16.2.3, 9.16.2.7, 9.16.3, 9.16.3.14, 9.16.3.15, 9.16.3.19, 9.16.3.23, 9.16.3.3, 9.16.4, 9.16.4.14, 9.16.4.18, 9.16.4.19, 9.16.4.27, 9.16.4.38, 9.16.4.39, 9.16.4.42, 9.16.4.48, 9.16.4.55, 9.16.4.57, 9.16.4.61, 9.16.4.62, 9.16.4.67, 9.16.4.70, 9.16.4.71, 9.16.4.76, 9.16.4.9, 9.17.1, 9.17.1.10, 9.17.1.11, 9.17.1.13, 9.17.1.15, 9.17.1.20, 9.17.1.30, 9.17.1.33, 9.17.1.39, 9.17.1.45, 9.17.1.46, 9.17.1.7, 9.17.1.9, 9.18.1, 9.18.1.3, 9.18.2, 9.18.2.5, 9.18.2.7, 9.18.2.8, 9.18.3, 9.18.3.39, 9.18.3.46, 9.18.3.53, 9.18.3.55, 9.18.3.56, 9.18.4, 9.18.4.22, 9.18.4.24, 9.18.4.29, 9.18.4.34, 9.18.4.40, 9.18.4.47, 9.18.4.5, 9.18.4.50, 9.18.4.8, 9.19.1, 9.19.1.12, 9.19.1.18, 9.19.1.22, 9.19.1.24, 9.19.1.27, 9.19.1.28, 9.19.1.31, 9.19.1.37, 9.19.1.38, 9.19.1.5, 9.19.1.9, 9.20.1, 9.20.1.5, 9.20.2, 9.20.2.10, 9.20.2.21, 9.20.2.22, 9.20.3, 9.20.3.10, 9.20.3.4, 9.20.3.7, 9.20.3.9, 9.22.1.1, 9.22.1.2, 9.22.1.3, 9.8.1, 9.8.1.5, 9.8.1.7, 9.8.2, 9.8.2.14, 9.8.2.15, 9.8.2.17, 9.8.2.20, 9.8.2.24, 9.8.2.26, 9.8.2.28, 9.8.2.33, 9.8.2.35, 9.8.2.38, 9.8.2.45, 9.8.2.8, 9.8.3, 9.8.3.11, 9.8.3.14, 9.8.3.16, 9.8.3.18, 9.8.3.21, 9.8.3.26, 9.8.3.29, 9.8.3.8, 9.8.4, 9.8.4.10, 9.8.4.12, 9.8.4.15, 9.8.4.17, 9.8.4.20, 9.8.4.22, 9.8.4.25, 9.8.4.26, 9.8.4.29, 9.8.4.3, 9.8.4.32, 9.8.4.33, 9.8.4.34, 9.8.4.35, 9.8.4.39, 9.8.4.40, 9.8.4.41, 9.8.4.43, 9.8.4.44, 9.8.4.45, 9.8.4.46, 9.8.4.48, 9.8.4.7, 9.8.4.8CNA affecteddefault unknown | |
| Cisco | Cisco Firepower Threat Defense Software | 6.2.3, 6.2.3.1, 6.2.3.10, 6.2.3.11, 6.2.3.12, 6.2.3.13, 6.2.3.14, 6.2.3.15, 6.2.3.16, 6.2.3.17, 6.2.3.18, 6.2.3.2, 6.2.3.3, 6.2.3.4, 6.2.3.5, 6.2.3.6, 6.2.3.7, 6.2.3.8, 6.2.3.9, 6.4.0, 6.4.0.1, 6.4.0.10, 6.4.0.11, 6.4.0.12, 6.4.0.13, 6.4.0.14, 6.4.0.15, 6.4.0.16, 6.4.0.17, 6.4.0.18, 6.4.0.2, 6.4.0.3, 6.4.0.4, 6.4.0.5, 6.4.0.6, 6.4.0.7, 6.4.0.8, 6.4.0.9, 6.6.0, 6.6.0.1, 6.6.1, 6.6.3, 6.6.4, 6.6.5, 6.6.5.1, 6.6.5.2, 6.6.7, 6.6.7.1, 6.6.7.2, 7.0.0, 7.0.0.1, 7.0.1, 7.0.1.1, 7.0.2, 7.0.2.1, 7.0.3, 7.0.4, 7.0.5, 7.0.6, 7.0.6.1, 7.0.6.2, 7.0.6.3, 7.0.7, 7.1.0, 7.1.0.1, 7.1.0.2, 7.1.0.3, 7.2.0, 7.2.0.1, 7.2.1, 7.2.2, 7.2.3, 7.2.4, 7.2.4.1, 7.2.5, 7.2.5.1, 7.2.5.2, 7.2.6, 7.2.7, 7.2.8, 7.2.8.1, 7.2.9, 7.3.0, 7.3.1, 7.3.1.1, 7.3.1.2, 7.4.0, 7.4.1, 7.4.1.1, 7.4.2, 7.4.2.1, 7.6.0CNA affecteddefault unknown |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.