Answer in brief
CVE-2026-20231 records a Unknown severity vulnerability in Cisco Secure Workload Software Security Hardening Release August 2026 - Improper Neutralization of Special Elements Vulnerabilities. The current sources do not mark it as known exploited. The current feed maps Cisco/Cisco Secure Workload (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Cisco/Cisco Secure Workload (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Cisco/Cisco Secure Workloadgeneric | 2.2.1.41 || 3.2.1.18 || 3.3.2.50 || 3.4.1.28 || 3.4.1.34 || 2.3.1.45 || 2.3.1.41 || 3.3.2.28 || 3.1.1.59 || 2.0.2.20 || 2.1.1.33 || 2.1.1.29 || 3.2.1.28 || 3.4.1.35 || 3.1.1.65 || 3.1.1.67 || 2.0.1.34 || 2.3.1.49 || 2.2.1.39 || 3.4.1.19 || 3.3.2.23 || 3.1.1.61 || 3.1.1.54 || 3.5.1.17 || 3.3.2.33 || 3.5.1.1 || 2.3.1.53 || 3.5.1.20 || 3.5.1.30 || 3.3.2.16 || 3.1.1.55 || 3.4.1.6 || 2.3.1.50 || 2.3.1.52 || 3.2.1.19 || 2.2.1.35 || 3.1.1.53 || 3.1.1.70 || 3.2.1.20 || 3.5.1.2 || 1.103.1.12 || 2.3.1.51 || 3.3.2.42 || 3.4.1.1 || 3.3.2.12 || 2.1.1.31 || 3.5.1.23 || 3.3.2.53 || 3.4.1.14 || 3.3.2.2 || 3.4.1.20 || 3.3.2.35 || 2.2.1.34 || 1.102.21 || 3.3.2.5 || 3.5.1.31 || 3.6.1.5 || 3.2.1.31 || 3.5.1.37 || 3.4.1.40 || 3.6.1.17 || 3.6.1.21 || 3.2.1.32 || 3.2.1.33 || 3.6.1.35 || 3.6.1.36 || 3.7.1.5 || 3.6.1.47 || 3.7.1.22 || 3.6.1.52 || 3.7.1.39 || 3.8.1.1 || 3.7.1.51 || 3.8.1.19 || 3.8.1.36 || 3.7.1.59 || 3.8.1.39 || 3.9.1.1 || 3.9.1.10 || 3.9.1.24 || 3.9.1.25 || 3.9.1.28 || 3.9.1.38 || 3.8.1.53 || 3.9.1.52 || 3.10.1.1 || 3.9.1.64 || 3.10.2.11 || 3.9.1.66 || 3.10.3.19 || 3.9.1.69 || 3.10.4.8 || 3.10.5.6 || 4.0.1.1 || 4.0.2.4 || 4.0.2.5 || 3.10.6.3 || 3.10.7.4 || 4.0.3.13 || 4.0.3.17 || 3.10.8.3 | Not reported |
Published upstream
Aug 19, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 19, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 19, 2026
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-2026-20231 are related to improper neutralization of special elements issues that are grouped under the Common Weakness Enumeration (CWE) CWE-74.
Quoted source text, attributed separately from HOL analysis.