CVE-2026-20231
CriticalCVSS 9.9Exploitation Probability (EPSS)
Low risk35th percentile - higher than 35% of all known CVEs
Summary
Vulnerability in Cisco Secure Workload related to improper neutralization of special elements (CWE-74). Discovered during internal security review, fixed in hardening release.
Risk Assessment
Lack of neutralization of special elements may enable injection attacks, leading to unauthorized actions or data leakage.
Recommendation
Update Cisco Secure Workload to a patched version.
Other vulnerabilities in Cisco Secure Workload
See all- CVE-2026-20318Critical
Vulnerability in Cisco Secure Workload related to improper input validation (CWE-20). Discovered during internal security review, fixed in hardening release.
- CVE-2026-20317Critical
Vulnerability in Cisco Secure Workload related to improper authentication (CWE-287). Discovered during internal security review, fixed in hardening release.
- CVE-2026-20315Critical
Vulnerability in Cisco Secure Workload related to improper access control (CWE-284). Discovered during internal security review, fixed in hardening release.
- CVE-2026-20223Critical
In Cisco Secure Workload, a vulnerability in the access validation of internal REST APIs could allow an unauthenticated, remote attacker to access site resources with Site Admin privileges. This is due to insufficient validation and authentication when accessing REST API endpoints. An attacker can send a crafted API request to a vulnerable endpoint to read sensitive information and make configuration changes across tenant boundaries.
- CVE-2026-20319High
Cisco Secure Workload contains multiple vulnerabilities related to buffer management issues, grouped under CWE-119. They were discovered during an internal security review and addressed in a software hardening release.
Original NVD description (English source)
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.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS