Vulnslist

Cisco vulnerabilities by product, model, software, and advisory.

CVE-2026-20125

A vulnerability in the HTTP Server feature of Cisco IOS Software and Cisco IOS XE Software Release 3E could allow an authenticated, remote attacker to cause an affected device to reload unexpectedly, resulting in a denial of service (DoS) condition. This vulnerability is due to improper validation of user-supplied input. An attacker could exploit this vulnerability by sending malformed HTTP requests to an affected device. A successful exploit could allow the attacker to cause a watchdog timer to expire and the device to reload, resulting in a DoS condition. To exploit this vulnerability, the attacker must have a valid user account.

SeverityHIGH
CVSS7.7
CWECWE-228
KEV No
Published
Modified

Related Products

Product Advisory Evidence
Cisco IOS cisco-sa-ios-http-dos-sbv8XRpL Cisco OpenVuln
Cisco IOS XE Software cisco-sa-ios-http-dos-sbv8XRpL Cisco OpenVuln
Cisco Catalyst 9600 Series Switches cisco-sa-ios-http-dos-sbv8XRpL Cisco OpenVuln · software-dependent
Cisco Catalyst 9500 Series Switches cisco-sa-ios-http-dos-sbv8XRpL Cisco OpenVuln · software-dependent
Cisco Catalyst 9400 Series Switches cisco-sa-ios-http-dos-sbv8XRpL Cisco OpenVuln · software-dependent
Cisco Catalyst 9200 Series Switches cisco-sa-ios-http-dos-sbv8XRpL Cisco OpenVuln · software-dependent
Cisco Catalyst 9300 Series Switches cisco-sa-ios-http-dos-sbv8XRpL Cisco OpenVuln · software-dependent