CVE-2025-20363A vulnerability in the web services of Cisco Secure Firewall Adaptive Security Appliance (ASA) Software, Cisco Secure Firewall Threat Defense (FTD) Software, Cisco IOS Software, Cisco IOS XE Software…
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It affects cisco ios_xr and 4 other products. Add what you run to find out whether that includes you.
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A vulnerability in the web services of Cisco Secure Firewall Adaptive Security Appliance (ASA) Software, Cisco Secure Firewall Threat Defense (FTD) Software, Cisco IOS Software, Cisco IOS XE Software, and Cisco IOS XR Software could allow an unauthenticated, remote attacker (Cisco ASA and FTD Software) or authenticated, remote attacker (Cisco IOS, IOS XE, and IOS XR Software) with low user privileges to execute arbitrary code on an affected device. This vulnerability is due to improper validation of user-supplied input in HTTP requests. An attacker could exploit this vulnerability by sending crafted HTTP requests to a targeted web service on an affected device after obtaining additional information about the system, overcoming exploit mitigations, or both. A successful exploit could allow the attacker to execute arbitrary code as root, which may lead to the complete compromise of the affected device. For more information about this vulnerability, see the Details ["#details"] section of this advisory.
- CVSS
- 9.0 CRITICAL (v3.1, NVD)CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
- Weakness (CWE)
- CWE-122
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Not given
- NVD analysis
- Analyzed
- Record last updated
- Oct 18, 2026
- First seen by InfoSec Signals
- Oct 18, 2026
Affected products
cisco ios_xr cisco:ios_xr | 6.5.1; 6.5.2; 6.5.3; 6.6.2; 6.6.3; 6.6.25; 6.7.1; 6.7.2; and 5 more ranges | NVD |
cisco adaptive_security_appliance_software cisco:adaptive_security_appliance_software | from 9.12 before 9.12.4.72; from 9.14 before 9.14.4.28; from 9.16 before 9.16.4.84; from 9.17.1 before 9.18.4.57; from 9.19.1 before 9.19.1.42; from 9.20.1 before 9.20.3.16; from 9.22 before 9.22.2; from 9.23 before 9.23.1.3 | NVD |
cisco ios cisco:ios | from 12.2\(15\)b through 15.9\(3\)m11 | NVD |
cisco ios_xe cisco:ios_xe | from 3.2.0sg through 17.17.1 | NVD |
cisco secure_firewall_threat_defense cisco:secure_firewall_threat_defense | from 7.0.0 before 7.0.8; from 7.1.0 before 7.2.10; from 7.3.0 before 7.4.2.3; from 7.7.0 before 7.7.10; 7.6.0 | NVD |
References
- https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-http-code-exec-WmfP3h3Ovendor-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.