Privilege escalation in Cisco Cyber Vision
CVE-2026-20291
As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco owned Open Source Snort 3 Software engineering team has conducted a comprehensive internal security review. This review resulted in software hardening releases that address multiple internally discovered vulnerabilities. The vulnerabilities tracked by CVE-2026-20291 are related to issues concerning improper privilege management that are grouped under the Common Weakness Enumeration (CWE) Base CWE-269.
Vulnerability class: Privilege Escalation
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
- Cisco Cyber Vision — versions 3.0.0, 3.0.1, 3.0.2
- Cisco Open Source Snort3 — versions 3.1.10.0, 3.1.12.0, 3.1.13.0
- Cisco Secure Firewall Threat Defense (Ftd) Software — versions 10.0.0, 7.0.0, 7.0.0.1
- Cisco Utd Snort Ips Engine Software — versions 17.12.1a, 17.12.2, 17.12.3
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-20291?
- CVE-2026-20291 is a high-severity vulnerability in Cisco Cyber Vision, classified under Improper Privilege Management. CVSS score: 7.8/10. Published 2026-10-21.
- How severe is CVE-2026-20291?
- High severity. CVSS v3 base score is 7.8 out of 10.