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CVE-2025-20363

critical · 9

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.

9
CVSS
6.9%
EPSS (exploit prob.)
94th
EPSS percentile
2025-09-25
Published

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

Weaknesses

CWE-122

Affected products

VendorProductAffected versions
ciscoios_xr6.5.1
ciscoios_xr6.5.2
ciscoios_xr6.5.3
ciscoios_xr6.6.2
ciscoios_xr6.6.3
ciscoios_xr6.6.25
ciscoios_xr6.7.1
ciscoios_xr6.7.2
ciscoios_xr6.7.3
ciscoios_xr6.8.1
ciscoios_xr6.8.2
ciscoios_xr6.9.1
ciscoios_xr6.9.2
ciscoasr_9001all versions
ciscoadaptive_security_appliance_software>= 9.12, < 9.12.4.72
ciscoadaptive_security_appliance_software>= 9.14, < 9.14.4.28
ciscoadaptive_security_appliance_software>= 9.16, < 9.16.4.84
ciscoadaptive_security_appliance_software>= 9.17.1, < 9.18.4.57
ciscoadaptive_security_appliance_software>= 9.19.1, < 9.19.1.42
ciscoadaptive_security_appliance_software>= 9.20.1, < 9.20.3.16
ciscoadaptive_security_appliance_software>= 9.22, < 9.22.2
ciscoadaptive_security_appliance_software>= 9.23, < 9.23.1.3
ciscoios>= 12.2\(15\)b, <= 15.9\(3\)m11
ciscoios_xe>= 3.2.0sg, <= 17.17.1
ciscosecure_firewall_threat_defense>= 7.0.0, < 7.0.8
ciscosecure_firewall_threat_defense>= 7.1.0, < 7.2.10
ciscosecure_firewall_threat_defense>= 7.3.0, < 7.4.2.3
ciscosecure_firewall_threat_defense>= 7.7.0, < 7.7.10
ciscosecure_firewall_threat_defense7.6.0

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References

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2025-20363