VDB
CVE-2026-20005
CVE-2026-20005
PUBLISHED
CVSS 5.800000190734863 MEDIUM
Multiple Cisco products are affected by a vulnerability in the Snort 3 Detection Engine that could allow an unauthenticated, remote attacker to cause the Snort 3 Detection Engine to restart, resulting in an interruption of packet inspection. This vulnerability is due to incomplete parsing of the SSL handshake ingress packets. An attacker could exploit this vulnerability by sending crafted SSL handshake packets. A successful exploit could allow the attacker to cause a denial of service (DoS) condition when the Snort 3 Detection Engine restarts unexpectedly.
EPSS 0.03% · 9.3th percentile
Risk Scores
CVSS 3.1
5.800000190734863
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L
EPSS Score
0.03%
9.3th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Cisco | Cisco Cyber Vision | 5.1.1, 5.2.1, 5.3.1 |
| Cisco | Cisco Secure Firewall Threat Defense (FTD) Software | 7.6.1, 7.6.2, 7.6.2.1 |
| Cisco | Cisco UTD SNORT IPS Engine Software | 17.6.2, 17.15.3, * |
Exploit Intelligence
Timeline
- Oct 8, 2025 CVE ID Reserved
- Mar 4, 2026 CVE Published
- Mar 4, 2026 CVE Updated
- Mar 5, 2026 EPSS Score
- Mar 6, 2026 EPSS Score
- Mar 7, 2026 EPSS Score
- Mar 9, 2026 EPSS Score
- Mar 10, 2026 EPSS Score
- Mar 11, 2026 EPSS Score
- Mar 12, 2026 EPSS Score
- Mar 14, 2026 EPSS Score
- Mar 15, 2026 EPSS Score