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CVE WatchSep 2, 2026

CVE-2026-20276

As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco IOS XR Software engineering team has conducted a

CVSS

8.6

High

EPSS

0.3%

p17

KEV

—

Exploit Today

5

0-100

Published: Sep 2, 2026 · Last modified: Sep 2, 2026 · CWE-691

EPSS · 30d
0.3%EPSS · 30 days0.3%
2026-09-032026-09-09
Technical description

As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco IOS XR Software engineering team has conducted a comprehensive internal security review. This review resulted in a software hardening releases that address multiple internally discovered vulnerabilities. The vulnerabilities tracked by CVE-2026-20276 are related to insufficient control flow management issues that are grouped under the Common Weakness Enumeration (CWE) CWE-691.

Official references
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