CRITICAL

CVE-2026-20274

Cisco Ios Xr 2026-09-02 CVSS v3.1

CVSS

9.8

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-2026-20274 are related to improper resource control issues that are grouped under the Common Weakness Enumeration (CWE) CWE-664.

Weakness (CWE)

CWE-664

EPSS Score

0.73%

Probability of exploitation in next 30 days

52.8th percentile

References

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-hardening-iosxr-qg64NcM Vendor Advisory https://www.cve.org/Media/News/item/blog/2026/06/16/Preserving-Vulnerability-Level-Identification Not Applicable

View on dbcve.org

Base CVE data derived from NVD (public domain). Enrichment by dbcve.org (CC-BY-4.0). Fetched via API.

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