VDB
CVE-2026-20053
CVE-2026-20053
PUBLISHED
CVSS 5.800000190734863 MEDIUM
Multiple Cisco products are affected by a vulnerability in the Snort 3 VBA feature that could allow an unauthenticated, remote attacker to cause the Snort 3 Detection Engine to crash. This vulnerability is due to improper range checking when decompressing VBA data, which is user controlled. An attacker could exploit this vulnerability by sending crafted VBA data to the Snort 3 Detection Engine on the targeted device. A successful exploit could allow the attacker to cause an overflow of heap data, which could cause a DoS condition.
EPSS 0.04% · 13.3th 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
0.04%
13.3th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Cisco | Cisco UTD SNORT IPS Engine Software | 17.12.2, *, * |
| Cisco | Cisco Cyber Vision | 4.2.3, 4.3.3, 4.4.0 |
| Cisco | Cisco Secure Firewall Threat Defense (FTD) Software | 7.6.2, 7.7.10, 7.4.2.2 |
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