CVE-2026-20231
Cisco Secure Workload Software Security Hardening Release August 2026 - Improper Neutralization of Special Elements Vulnerabilities
CVSS Score
9.9
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-74 |
| Vendor | cisco |
| Product | cisco secure workload |
| Ecosystems | |
| Industries | NetworkingTelecommunications |
| Published | Aug 19, 2026 |
| Last Updated | Aug 19, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High
Affected Versions
Cisco / Cisco Secure Workload
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