CVSS 3.1
5.8 mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:LCVE-2026-20057
Medium (5.8) in cisco. EPSS 0.5% chance of exploitation in the next 30 days.
Multiple Cisco products are affected by a vulnerability in the Snort 3 Visual Basic for Applications (VBA) feature which could allow an unauthenticated, remote attacker to cause the Snort 3 Detection Engine to crash.
This vulnerability is due to lack of proper error checking when decompressing VBA data. An attacker could exploit this vulnerability by sending a crafted VBA data to the Snort 3 Detection Engine on the targeted device. A successful exploit could allow the attacker to cause the Snort 3 Detection Engine to unexpectedly restart causing a a denial of service (DoS) condition.
Severity
- EPSS
- 0.5% chance of exploitation in the next 30 days; higher than 41% of CVEs (scores of 2026-10-31)
- CWE
- CWE-369
- Published
- Modified
- Record from
- the NVD, synced
Affected
- cisco:cyber_vision
- cisco:secure_firewall_threat_defense
- cisco:snort
- cisco:unified_threat_defense_snort_intrusion_prevention_system_engine