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CVE-2026-20231: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') in Cisco Cisco Secure Workload

0
Critical
VulnerabilityCVE-2026-20231cvecve-2026-20231
Published: 08/19/2026 (08/19/2026, 16:16:58 UTC)
Source: CVE Database V5
Vendor/Project: Cisco
Product: Cisco Secure Workload

Description

CVE-2026-20231 is a critical vulnerability in Cisco Secure Workload involving improper neutralization of special elements in output used by a downstream component, categorized under CWE-74. This vulnerability has a CVSS score of 9.9, indicating high severity with network attack vector, low attack complexity, and requiring low privileges but no user interaction. It impacts confidentiality, integrity, and availability with a complete scope change. Multiple specific versions of Cisco Secure Workload are affected.

CVSS v3.1

Score 9.9critical

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Affected software

Cisco

Cisco Secure Workload

Affected versions
=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

AI-Powered Analysis

Machine-generated threat intelligence

AILast updated: 09/11/2026, 07:48:24 UTC

Technical Analysis

CVE-2026-20231 addresses multiple internally discovered vulnerabilities in Cisco Secure Workload related to improper neutralization of special elements in output that is used by downstream components, classified under CWE-74. This can lead to injection issues. The vulnerability has a critical CVSS 3.1 score of 9.9, reflecting its potential impact on confidentiality, integrity, and availability. The affected versions are numerous and explicitly enumerated, covering many releases of Cisco Secure Workload. There is no vendor advisory or patch information provided in the input, so patch status is not confirmed.

Potential Impact

The vulnerability allows an attacker with low privileges to execute network-based attacks without user interaction, potentially leading to complete compromise of confidentiality, integrity, and availability of the affected system. The scope is changed, meaning the vulnerability affects components beyond the initially vulnerable component.

Mitigation Recommendations

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no official fix or patch information is provided, users should monitor Cisco's advisories for updates and apply patches or mitigations as soon as they become available.

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Technical Details

Data Version
5.2
Assigner Short Name
cisco
Date Reserved
2025-10-08T11:59:15.399Z
Cvss Version
3.1
State
PUBLISHED

Threat ID: 6a85d85eacd9273b49511c75

Added to database: 08/19/2026, 16:22:54 UTC

Last enriched: 09/11/2026, 07:48:24 UTC

Last updated: 10/04/2026, 10:04:19 UTC

Views: 58

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