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Vulnerability record · CVE-2026-20317 · published 19 August 2026

CVE-2026-20317: Improper authentication vulnerability

As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Secure Workload engineering team has conducted a comprehensive internal security review. This review resulted in a software hardening release that addresses multiple internally discovered vulnerabilities. The vulnerabilities tracked by CVE-2026-20317 are related to improper authentication issues that are grouped under the Common Weakness Enumeration (CWE) CWE-287.

10.0 CVSS 3.1 Critical EPSS 0.56% · top 55.8% CWE-287 · Improper authentication Awaiting Analysis
10.0CVSS 3.1 base score
0.56%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
2References
20 Aug 2026Last modified by NVD

Description

As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Secure Workload engineering team has conducted a comprehensive internal security review. This review resulted in a software hardening release that addresses multiple internally discovered vulnerabilities. The vulnerabilities tracked by CVE-2026-20317 are related to improper authentication issues that are grouped under the Common Weakness Enumeration (CWE) CWE-287.

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

References

LinkTags
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-hardening-csw1-shSvndWP
https://www.cve.org/Media/News/item/blog/2026/06/16/Preserving-Vulnerability-Level-Identification

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2026-20317), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.