CVE-2026-20308

published 2026-08-05

CVE-2026-20308: A vulnerability in the web-based management interface of Cisco IOS XE Software could allow an authenticated, remote attacker with low privileges to perform a…

Priority P4 25 medium 4.3 CVSS 3.1

AV N AC L PR L UI N S U C N I N A L

A vulnerability in the web-based management interface of Cisco IOS XE Software could allow an authenticated, remote attacker with low privileges to perform a denial of service (DoS) attack against an affected device.

This vulnerability is due to insufficient input validation. An attacker could exploit this vulnerability by sending crafted input to the web-based management interface of an affected device. A successful exploit could allow the attacker to cause the web-based management interface to become unresponsive.

Affected

239 ranges · showing 25

Vendor	Product	Version range	Fixed in
cisco	cisco_ios_xe_software	—	—
cisco	cisco_ios_xe_software	—	—
cisco	cisco_ios_xe_software	—	—
cisco	cisco_ios_xe_software	—	—
cisco	cisco_ios_xe_software	—	—
cisco	cisco_ios_xe_software	—	—
cisco	cisco_ios_xe_software	—	—
cisco	cisco_ios_xe_software	—	—
cisco	cisco_ios_xe_software	—	—
cisco	cisco_ios_xe_software	—	—
cisco	cisco_ios_xe_software	—	—
cisco	cisco_ios_xe_software	—	—
cisco	cisco_ios_xe_software	—	—
cisco	cisco_ios_xe_software	—	—
cisco	cisco_ios_xe_software	—	—
cisco	cisco_ios_xe_software	—	—
cisco	cisco_ios_xe_software	—	—
cisco	cisco_ios_xe_software	—	—
cisco	cisco_ios_xe_software	—	—
cisco	cisco_ios_xe_software	—	—
cisco	cisco_ios_xe_software	—	—
cisco	cisco_ios_xe_software	—	—
cisco	cisco_ios_xe_software	—	—
cisco	cisco_ios_xe_software	—	—
cisco	cisco_ios_xe_software	—	—

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CWE-269