Cisco Secure Workload Buffer Management Flaw (CWE-119)
CVE-2026-20319 Published on August 19, 2026
Cisco Secure Workload Software Security Hardening Release August 2026 - Buffer Management Vulnerabilities
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.
Vulnerability Analysis
CVE-2026-20319 can be exploited with network access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality and integrity, and a high impact on availability.
Weakness Type
What is a Buffer Overflow Vulnerability?
The software performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer.
CVE-2026-20319 has been classified to as a Buffer Overflow vulnerability or weakness.
Affected Versions
Cisco Secure Workload:- Version 2.2.1.41 is affected.
- Version 3.2.1.18 is affected.
- Version 3.3.2.50 is affected.
- Version 3.4.1.28 is affected.
- Version 3.4.1.34 is affected.
- Version 2.3.1.45 is affected.
- Version 2.3.1.41 is affected.
- Version 3.3.2.28 is affected.
- Version 3.1.1.59 is affected.
- Version 2.0.2.20 is affected.
- Version 2.1.1.33 is affected.
- Version 2.1.1.29 is affected.
- Version 3.2.1.28 is affected.
- Version 3.4.1.35 is affected.
- Version 3.1.1.65 is affected.
- Version 3.1.1.67 is affected.
- Version 2.0.1.34 is affected.
- Version 2.3.1.49 is affected.
- Version 2.2.1.39 is affected.
- Version 3.4.1.19 is affected.
- Version 3.3.2.23 is affected.
- Version 3.1.1.61 is affected.
- Version 3.1.1.54 is affected.
- Version 3.5.1.17 is affected.
- Version 3.3.2.33 is affected.
- Version 3.5.1.1 is affected.
- Version 2.3.1.53 is affected.
- Version 3.5.1.20 is affected.
- Version 3.5.1.30 is affected.
- Version 3.3.2.16 is affected.
- Version 3.1.1.55 is affected.
- Version 3.4.1.6 is affected.
- Version 2.3.1.50 is affected.
- Version 2.3.1.52 is affected.
- Version 3.2.1.19 is affected.
- Version 2.2.1.35 is affected.
- Version 3.1.1.53 is affected.
- Version 3.1.1.70 is affected.
- Version 3.2.1.20 is affected.
- Version 3.5.1.2 is affected.
- Version 1.103.1.12 is affected.
- Version 2.3.1.51 is affected.
- Version 3.3.2.42 is affected.
- Version 3.4.1.1 is affected.
- Version 3.3.2.12 is affected.
- Version 2.1.1.31 is affected.
- Version 3.5.1.23 is affected.
- Version 3.3.2.53 is affected.
- Version 3.4.1.14 is affected.
- Version 3.3.2.2 is affected.
- Version 3.4.1.20 is affected.
- Version 3.3.2.35 is affected.
- Version 2.2.1.34 is affected.
- Version 1.102.21 is affected.
- Version 3.3.2.5 is affected.
- Version 3.5.1.31 is affected.
- Version 3.6.1.5 is affected.
- Version 3.2.1.31 is affected.
- Version 3.5.1.37 is affected.
- Version 3.4.1.40 is affected.
- Version 3.6.1.17 is affected.
- Version 3.6.1.21 is affected.
- Version 3.2.1.32 is affected.
- Version 3.2.1.33 is affected.
- Version 3.6.1.35 is affected.
- Version 3.6.1.36 is affected.
- Version 3.7.1.5 is affected.
- Version 3.6.1.47 is affected.
- Version 3.7.1.22 is affected.
- Version 3.6.1.52 is affected.
- Version 3.7.1.39 is affected.
- Version 3.8.1.1 is affected.
- Version 3.7.1.51 is affected.
- Version 3.8.1.19 is affected.
- Version 3.8.1.36 is affected.
- Version 3.7.1.59 is affected.
- Version 3.8.1.39 is affected.
- Version 3.9.1.1 is affected.
- Version 3.9.1.10 is affected.
- Version 3.9.1.24 is affected.
- Version 3.9.1.25 is affected.
- Version 3.9.1.28 is affected.
- Version 3.9.1.38 is affected.
- Version 3.8.1.53 is affected.
- Version 3.9.1.52 is affected.
- Version 3.10.1.1 is affected.
- Version 3.9.1.64 is affected.
- Version 3.10.2.11 is affected.
- Version 3.9.1.66 is affected.
- Version 3.10.3.19 is affected.
- Version 3.9.1.69 is affected.
- Version 3.10.4.8 is affected.
- Version 3.10.5.6 is affected.
- Version 4.0.1.1 is affected.
- Version 4.0.2.4 is affected.
- Version 4.0.2.5 is affected.
- Version 3.10.6.3 is affected.
- Version 3.10.7.4 is affected.
- Version 4.0.3.13 is affected.
- Version 4.0.3.17 is affected.
- Version 3.10.8.3 is affected.