CVE-2026-20319

Cisco Secure Workload Software Security Hardening Release August 2026 - Buffer Management Vulnerabilities

Published Aug 19, 2026 CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed

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-2026-20319 are related to buffer management issues that are grouped under the Common Weakness Enumeration (CWE) CWE-119.

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

Cisco

Cisco Secure Workload

unknown

Version	Status	Constraints
`2.2.1.41`	affected	—
`3.2.1.18`	affected	—
`3.3.2.50`	affected	—
`3.4.1.28`	affected	—
`3.4.1.34`	affected	—
`2.3.1.45`	affected	—
`2.3.1.41`	affected	—
`3.3.2.28`	affected	—
`3.1.1.59`	affected	—
`2.0.2.20`	affected	—
`2.1.1.33`	affected	—
`2.1.1.29`	affected	—
`3.2.1.28`	affected	—
`3.4.1.35`	affected	—
`3.1.1.65`	affected	—
`3.1.1.67`	affected	—
`2.0.1.34`	affected	—
`2.3.1.49`	affected	—
`2.2.1.39`	affected	—
`3.4.1.19`	affected	—
`3.3.2.23`	affected	—
`3.1.1.61`	affected	—
`3.1.1.54`	affected	—
`3.5.1.17`	affected	—
`3.3.2.33`	affected	—
`3.5.1.1`	affected	—
`2.3.1.53`	affected	—
`3.5.1.20`	affected	—
`3.5.1.30`	affected	—
`3.3.2.16`	affected	—
`3.1.1.55`	affected	—
`3.4.1.6`	affected	—
`2.3.1.50`	affected	—
`2.3.1.52`	affected	—
`3.2.1.19`	affected	—
`2.2.1.35`	affected	—
`3.1.1.53`	affected	—
`3.1.1.70`	affected	—
`3.2.1.20`	affected	—
`3.5.1.2`	affected	—
`1.103.1.12`	affected	—
`2.3.1.51`	affected	—
`3.3.2.42`	affected	—
`3.4.1.1`	affected	—
`3.3.2.12`	affected	—
`2.1.1.31`	affected	—
`3.5.1.23`	affected	—
`3.3.2.53`	affected	—
`3.4.1.14`	affected	—
`3.3.2.2`	affected	—
`3.4.1.20`	affected	—
`3.3.2.35`	affected	—
`2.2.1.34`	affected	—
`1.102.21`	affected	—
`3.3.2.5`	affected	—
`3.5.1.31`	affected	—
`3.6.1.5`	affected	—
`3.2.1.31`	affected	—
`3.5.1.37`	affected	—
`3.4.1.40`	affected	—
`3.6.1.17`	affected	—
`3.6.1.21`	affected	—
`3.2.1.32`	affected	—
`3.2.1.33`	affected	—
`3.6.1.35`	affected	—
`3.6.1.36`	affected	—
`3.7.1.5`	affected	—
`3.6.1.47`	affected	—
`3.7.1.22`	affected	—
`3.6.1.52`	affected	—
`3.7.1.39`	affected	—
`3.8.1.1`	affected	—
`3.7.1.51`	affected	—
`3.8.1.19`	affected	—
`3.8.1.36`	affected	—
`3.7.1.59`	affected	—
`3.8.1.39`	affected	—
`3.9.1.1`	affected	—
`3.9.1.10`	affected	—
`3.9.1.24`	affected	—
`3.9.1.25`	affected	—
`3.9.1.28`	affected	—
`3.9.1.38`	affected	—
`3.8.1.53`	affected	—
`3.9.1.52`	affected	—
`3.10.1.1`	affected	—
`3.9.1.64`	affected	—
`3.10.2.11`	affected	—
`3.9.1.66`	affected	—
`3.10.3.19`	affected	—
`3.9.1.69`	affected	—
`3.10.4.8`	affected	—
`3.10.5.6`	affected	—
`4.0.1.1`	affected	—
`4.0.2.4`	affected	—
`4.0.2.5`	affected	—
`3.10.6.3`	affected	—
`3.10.7.4`	affected	—
`4.0.3.13`	affected	—
`4.0.3.17`	affected	—
`3.10.8.3`	affected	—

No data.

Vendor Product Versions

Cisco

Secure Workload

Version	Status	Scheme	Platform
`2.2.1.41`	affected	generic	—
`3.2.1.18`	affected	generic	—
`3.3.2.50`	affected	generic	—
`3.4.1.28`	affected	generic	—
`3.4.1.34`	affected	generic	—
`2.3.1.45`	affected	generic	—
`2.3.1.41`	affected	generic	—
`3.3.2.28`	affected	generic	—
`3.1.1.59`	affected	generic	—
`2.0.2.20`	affected	generic	—
`2.1.1.33`	affected	generic	—
`2.1.1.29`	affected	generic	—
`3.2.1.28`	affected	generic	—
`3.4.1.35`	affected	generic	—
`3.1.1.65`	affected	generic	—
`3.1.1.67`	affected	generic	—
`2.0.1.34`	affected	generic	—
`2.3.1.49`	affected	generic	—
`2.2.1.39`	affected	generic	—
`3.4.1.19`	affected	generic	—
`3.3.2.23`	affected	generic	—
`3.1.1.61`	affected	generic	—
`3.1.1.54`	affected	generic	—
`3.5.1.17`	affected	generic	—
`3.3.2.33`	affected	generic	—
`3.5.1.1`	affected	generic	—
`2.3.1.53`	affected	generic	—
`3.5.1.20`	affected	generic	—
`3.5.1.30`	affected	generic	—
`3.3.2.16`	affected	generic	—
`3.1.1.55`	affected	generic	—
`3.4.1.6`	affected	generic	—
`2.3.1.50`	affected	generic	—
`2.3.1.52`	affected	generic	—
`3.2.1.19`	affected	generic	—
`2.2.1.35`	affected	generic	—
`3.1.1.53`	affected	generic	—
`3.1.1.70`	affected	generic	—
`3.2.1.20`	affected	generic	—
`3.5.1.2`	affected	generic	—
`1.103.1.12`	affected	generic	—
`2.3.1.51`	affected	generic	—
`3.3.2.42`	affected	generic	—
`3.4.1.1`	affected	generic	—
`3.3.2.12`	affected	generic	—
`2.1.1.31`	affected	generic	—
`3.5.1.23`	affected	generic	—
`3.3.2.53`	affected	generic	—
`3.4.1.14`	affected	generic	—
`3.3.2.2`	affected	generic	—
`3.4.1.20`	affected	generic	—
`3.3.2.35`	affected	generic	—
`2.2.1.34`	affected	generic	—
`1.102.21`	affected	generic	—
`3.3.2.5`	affected	generic	—
`3.5.1.31`	affected	generic	—
`3.6.1.5`	affected	generic	—
`3.2.1.31`	affected	generic	—
`3.5.1.37`	affected	generic	—
`3.4.1.40`	affected	generic	—
`3.6.1.17`	affected	generic	—
`3.6.1.21`	affected	generic	—
`3.2.1.32`	affected	generic	—
`3.2.1.33`	affected	generic	—
`3.6.1.35`	affected	generic	—
`3.6.1.36`	affected	generic	—
`3.7.1.5`	affected	generic	—
`3.6.1.47`	affected	generic	—
`3.7.1.22`	affected	generic	—
`3.6.1.52`	affected	generic	—
`3.7.1.39`	affected	generic	—
`3.8.1.1`	affected	generic	—
`3.7.1.51`	affected	generic	—
`3.8.1.19`	affected	generic	—
`3.8.1.36`	affected	generic	—
`3.7.1.59`	affected	generic	—
`3.8.1.39`	affected	generic	—
`3.9.1.1`	affected	generic	—
`3.9.1.10`	affected	generic	—
`3.9.1.24`	affected	generic	—
`3.9.1.25`	affected	generic	—
`3.9.1.28`	affected	generic	—
`3.9.1.38`	affected	generic	—
`3.8.1.53`	affected	generic	—
`3.9.1.52`	affected	generic	—
`3.10.1.1`	affected	generic	—
`3.9.1.64`	affected	generic	—
`3.10.2.11`	affected	generic	—
`3.9.1.66`	affected	generic	—
`3.10.3.19`	affected	generic	—
`3.9.1.69`	affected	generic	—
`3.10.4.8`	affected	generic	—
`3.10.5.6`	affected	generic	—
`4.0.1.1`	affected	generic	—
`4.0.2.4`	affected	generic	—
`4.0.2.5`	affected	generic	—
`3.10.6.3`	affected	generic	—
`3.10.7.4`	affected	generic	—
`4.0.3.13`	affected	generic	—
`4.0.3.17`	affected	generic	—
`3.10.8.3`	affected	generic	—

Remediation

No solution or workaround provided in the CVE record

Tracking

Advisories

No advisories available

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploit prediction score: < 1% (0.467% probability within 30 days)

Exploitation none

Automatable yes

Technical Impact partial

References

Link	Providers
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

History

Aug 20, 2026 9:15 AM First appearance in the feed. Affected vendors updated View changes

Type	Values Removed	Values Added
First Time appeared		Cisco Cisco secure Workload
Vendors & Products		Cisco Cisco secure Workload

Aug 19, 2026 8:30 PM Scoring metrics updated View changes

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Aug 19, 2026 7:30 PM Added references View changes

Type	Values Removed	Values Added
References		https://www.cve.org/Media/News/item/blog/2026/06/16/Preserving-Vulnerability-Level-Identification

Aug 19, 2026 4:30 PM Description updated. Title updated. Weaknesses updated. Added references. Scoring metrics updated View changes

Type	Values Removed	Values Added
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-2026-20319 are related to buffer management issues that are grouped under the Common Weakness Enumeration (CWE) CWE-119.
Title		Cisco Secure Workload Software Security Hardening Release August 2026 - Buffer Management Vulnerabilities
Weaknesses		CWE-119
References		https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-hardening-csw1-shSvndWP
Metrics		cvssV3_1 `{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}`