CVE-2026-20272

CriticalCVSS 9.8/10Last modified Oct 23, 2026

Description

As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco IOS XE Software engineering team has conducted a comprehensive internal security review. This review resulted in software hardening releases that address multiple internally discovered vulnerabilities. The vulnerabilities tracked by CVE-2026-20272 are related to issues with improper neutralization of special elements that are grouped under the Common Weakness Enumeration (CWE) Pillar CWE-74.

Metrics

CVSS 3.1 9.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-74

Affected software

No affected versions have been published.

Timeline

Published
Aug 5, 2026
Last modified
Oct 23, 2026
NVD status
Modified

Related CVEs from 2026

CVE-2026-202738.6As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco IOS XE Software engineering team has conducted a CVE-2026-202749.8As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco IOS XR Software engineering team has conducted a CVE-2026-202758.8As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco IOS XR Software engineering team has conducted a CVE-2026-202768.6As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco IOS XR Software engineering team has conducted a CVE-2026-202778.2As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco IOS XR Software engineering team has conducted a CVE-2026-202788.8As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco IOS XR Software engineering team has conducted a CVE-2026-202799.8As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco IOS XR Software engineering team has conducted a CVE-2026-20285.3The MaxiBlocks Builder plugin for WordPress is vulnerable to arbitrary media file deletion due to insufficient file ownership validation on CVE-2026-202808.8As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco IOS XR Software engineering team has conductCVE-2026-202817.5A vulnerability in Cisco Desk Phone 9800 Series, Cisco IP Phone 7800 and 8800 Series, and Cisco Video Phone 8875 that are running Cisco SessCVE-2026-202824.9A vulnerability in Cisco ISE could allow an authenticated, remote attacker to obtain write access on the underlying operating system of an aCVE-2026-202836.5A vulnerability in the IPsec Open API endpoint of Cisco ISE could allow an authenticated, remote attacker to inject arbitrary commands on th