Tracker / CVE-2026-20053
CVE-2026-20053
Medium 5.8
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.
Affected products and versions
| cisco | cyber_vision |
|---|---|
| cisco | secure_firewall_threat_defense |
| cisco | snort · 3.0.0-233 → 3.9.3.0 |
| cisco | unified_threat_defense_snort_intrusion_prevention_system_engine |
Analysis
This page is not indexable yet.Until it carries original analysis — what it actually exposes, how to check in two minutes whether a system was touched, what to do if it was — the page stays noindex. The database decides that, not the template.