Vulnerability Intelligence Report
Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Web Services Buffer Overflow Denial of Service Vulnerability
CVE-2025-20263
A vulnerability in the web services interface 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 a buffer overflow on an affected system. This vulnerability is due to insufficient boundary checks for specific data that is provided to the web services interface of an affected system. An attacker could exploit this vulnerability by sending a crafted HTTP request to the affected system. A successful exploit could allow the attacker to cause a buffer overflow condition on the affected system, which could cause the system to reload, resulting in a denial of service (DoS) condition.
No Active Exploit Signals
CVSS Base Score
8.6
HIGH
Exploitability:3.9
Impact Score:4.0
EPSS Probability:0.60%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
—
Authentication
—
Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-680 ↗Integer Overflow to Buffer Overflow
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| Cisco | Cisco Adaptive Security Appliance (ASA) Software | 9.12.3 (affected), 9.8.3 (affected), 9.12.1 (affected), 9.8.1 (affected), 9.12.2 (affected), 9.8.2.45 (affected), 9.8.2 (affected), 9.8.4 (affected), 9.14.1 (affected), 9.12.4 (affected), 9.8.2.26 (affected), 9.8.2.24 (affected), 9.8.2.15 (affected), 9.8.2.14 (affected), 9.8.2.35 (affected), 9.8.2.20 (affected), 9.8.2.8 (affected), 9.8.2.17 (affected), 9.8.2.28 (affected), 9.8.2.33 (affected), 9.8.2.38 (affected), 9.8.4.25 (affected), 9.12.3.2 (affected), 9.12.3.7 (affected), 9.8.3.18 (affected), 9.8.3.14 (affected), 9.8.4.15 (affected), 9.8.4.8 (affected), 9.8.1.7 (affected), 9.8.3.29 (affected), 9.14.1.10 (affected), 9.12.2.5 (affected), 9.8.4.22 (affected), 9.12.3.12 (affected), 9.8.4.7 (affected), 9.8.4.17 (affected), 9.8.3.16 (affected), 9.8.4.20 (affected), 9.8.3.11 (affected), 9.12.1.3 (affected), 9.8.4.3 (affected), 9.12.2.4 (affected), 9.8.4.12 (affected), 9.12.1.2 (affected), 9.8.3.26 (affected), 9.8.1.5 (affected), 9.12.2.9 (affected), 9.12.3.9 (affected), 9.8.3.21 (affected), 9.8.4.10 (affected), 9.12.2.1 (affected), 9.12.4.2 (affected), 9.14.1.6 (affected), 9.8.3.8 (affected), 9.14.1.15 (affected), 9.14.1.19 (affected), 9.8.4.26 (affected), 9.12.4.4 (affected), 9.14.1.30 (affected), 9.8.4.29 (affected), 9.12.4.7 (affected), 9.14.2 (affected), 9.12.4.8 (affected), 9.8.4.32 (affected), 9.12.4.10 (affected), 9.14.2.4 (affected), 9.14.2.8 (affected), 9.12.4.13 (affected), 9.8.4.33 (affected), 9.14.2.13 (affected), 9.8.4.34 (affected), 9.12.4.18 (affected), 9.8.4.35 (affected), 9.14.2.15 (affected), 9.12.4.24 (affected), 9.16.1 (affected), 9.8.4.39 (affected), 9.14.3 (affected), 9.12.4.26 (affected), 9.16.1.28 (affected), 9.14.3.1 (affected), 9.12.4.29 (affected), 9.14.3.9 (affected), 9.16.2 (affected), 9.12.4.30 (affected), 9.16.2.3 (affected), 9.8.4.40 (affected), 9.14.3.11 (affected), 9.12.4.35 (affected), 9.8.4.41 (affected), 9.14.3.13 (affected), 9.16.2.7 (affected), 9.12.4.37 (affected), 9.14.3.15 (affected), 9.17.1 (affected), 9.16.2.11 (affected), 9.14.3.18 (affected), 9.16.2.13 (affected), 9.12.4.39 (affected), 9.12.4.38 (affected), 9.8.4.43 (affected), 9.14.4 (affected), 9.16.2.14 (affected), 9.17.1.7 (affected), 9.12.4.40 (affected), 9.16.3.3 (affected), 9.14.4.6 (affected), 9.16.3 (affected), 9.16.3.14 (affected), 9.17.1.9 (affected), 9.14.4.7 (affected), 9.12.4.41 (affected), 9.17.1.10 (affected), 9.8.4.44 (affected), 9.18.1 (affected), 9.12.4.47 (affected), 9.14.4.12 (affected), 9.16.3.15 (affected), 9.18.1.3 (affected), 9.17.1.11 (affected), 9.12.4.48 (affected), 9.14.4.13 (affected), 9.18.2 (affected), 9.16.3.19 (affected), 9.17.1.13 (affected), 9.12.4.50 (affected), 9.14.4.14 (affected), 9.17.1.15 (affected), 9.8.4.45 (affected), 9.12.4.52 (affected), 9.14.4.15 (affected), 9.16.3.23 (affected), 9.18.2.5 (affected), 9.16.4 (affected), 9.12.4.54 (affected), 9.14.4.17 (affected), 9.8.4.46 (affected), 9.17.1.20 (affected), 9.18.2.7 (affected), 9.19.1 (affected), 9.16.4.9 (affected), 9.12.4.55 (affected), 9.18.2.8 (affected), 9.14.4.22 (affected), 9.16.4.14 (affected), 9.8.4.48 (affected), 9.18.3 (affected), 9.19.1.5 (affected), 9.14.4.23 (affected), 9.12.4.56 (affected), 9.16.4.18 (affected), 9.17.1.30 (affected), 9.19.1.9 (affected), 9.18.3.39 (affected), 9.16.4.19 (affected), 9.12.4.58 (affected), 9.19.1.12 (affected), 9.18.3.46 (affected), 9.16.4.27 (affected), 9.19.1.18 (affected), 9.18.3.53 (affected), 9.18.3.55 (affected), 9.16.4.38 (affected), 9.17.1.33 (affected), 9.12.4.62 (affected), 9.16.4.39 (affected), 9.18.3.56 (affected), 9.20.1 (affected), 9.16.4.42 (affected), 9.19.1.22 (affected), 9.18.4 (affected), 9.20.1.5 (affected), 9.18.4.5 (affected), 9.19.1.24 (affected), 9.16.4.48 (affected), 9.18.4.8 (affected), 9.20.2 (affected), 9.19.1.27 (affected), 9.12.4.65 (affected), 9.16.4.55 (affected), 9.18.4.22 (affected), 9.20.2.10 (affected), 9.16.4.57 (affected), 9.19.1.28 (affected), 9.17.1.39 (affected), 9.12.4.67 (affected), 9.14.4.24 (affected), 9.18.4.24 (affected), 9.20.2.21 (affected), 9.16.4.61 (affected), 9.19.1.31 (affected), 9.18.4.29 (affected), 9.20.2.22 (affected), 9.16.4.62 (affected), 9.18.4.34 (affected), 9.20.3 (affected), 9.16.4.67 (affected), 9.16.4.70 (affected), 9.18.4.40 (affected), 9.22.1.1 (affected), 9.16.4.71 (affected), 9.20.3.4 (affected), 9.18.4.47 (affected), 9.20.3.7 (affected), 9.17.1.45 (affected), 9.19.1.37 (affected), 9.17.1.46 (affected), 9.16.4.76 (affected), 9.20.3.9 (affected), 9.19.1.38 (affected), 9.18.4.50 (affected), 9.22.1.3 (affected), 9.20.3.10 (affected), 9.22.1.2 (affected) |
| Cisco | Cisco Firepower Threat Defense Software | 6.2.3.14 (affected), 6.4.0.1 (affected), 6.2.3.7 (affected), 6.2.3 (affected), 6.4.0.2 (affected), 6.2.3.9 (affected), 6.2.3.1 (affected), 6.2.3.2 (affected), 6.4.0.5 (affected), 6.2.3.10 (affected), 6.4.0 (affected), 6.4.0.3 (affected), 6.2.3.6 (affected), 6.4.0.4 (affected), 6.2.3.15 (affected), 6.2.3.5 (affected), 6.2.3.4 (affected), 6.2.3.3 (affected), 6.2.3.8 (affected), 6.4.0.6 (affected), 6.2.3.11 (affected), 6.2.3.12 (affected), 6.2.3.13 (affected), 6.4.0.7 (affected), 6.4.0.8 (affected), 6.6.0 (affected), 6.4.0.9 (affected), 6.2.3.16 (affected), 6.6.0.1 (affected), 6.6.1 (affected), 6.4.0.10 (affected), 6.4.0.11 (affected), 6.6.3 (affected), 6.6.4 (affected), 6.4.0.12 (affected), 7.0.0 (affected), 6.2.3.17 (affected), 7.0.0.1 (affected), 6.6.5 (affected), 7.0.1 (affected), 7.1.0 (affected), 6.4.0.13 (affected), 6.6.5.1 (affected), 6.2.3.18 (affected), 7.0.1.1 (affected), 6.4.0.14 (affected), 7.1.0.1 (affected), 6.6.5.2 (affected), 7.0.2 (affected), 6.4.0.15 (affected), 7.2.0 (affected), 7.0.2.1 (affected), 7.0.3 (affected), 6.6.7 (affected), 7.1.0.2 (affected), 7.2.0.1 (affected), 7.0.4 (affected), 7.2.1 (affected), 7.0.5 (affected), 6.4.0.16 (affected), 7.3.0 (affected), 7.2.2 (affected), 7.2.3 (affected), 6.6.7.1 (affected), 7.3.1 (affected), 7.1.0.3 (affected), 7.2.4 (affected), 7.0.6 (affected), 7.2.5 (affected), 7.2.4.1 (affected), 7.3.1.1 (affected), 7.4.0 (affected), 6.4.0.17 (affected), 7.0.6.1 (affected), 7.2.5.1 (affected), 7.4.1 (affected), 7.2.6 (affected), 7.0.6.2 (affected), 7.4.1.1 (affected), 6.6.7.2 (affected), 6.4.0.18 (affected), 7.2.7 (affected), 7.2.5.2 (affected), 7.3.1.2 (affected), 7.2.8 (affected), 7.6.0 (affected), 7.4.2 (affected), 7.2.8.1 (affected), 7.0.6.3 (affected), 7.4.2.1 (affected), 7.2.9 (affected), 7.0.7 (affected) |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
EPSS Score
0.603%
GitHub Advisory
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | Cisco Systems, Inc. · Hosted Service · USA |
| Reserved | 2024-10-10T19:15:13 |
| Published | 2025-08-14T16:29:53 |
| Last Updated | 2025-08-14T19:19:14 |
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