🛡️ CVE-2022-20685
🟠 CVSS 7.5 — High ✅ No Known Exploit CWE-190 NVD
7.5
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

A vulnerability in the Modbus preprocessor of the Snort detection engine could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to an integer overflow while processing Modbus traffic. An attacker could exploit this vulnerability by sending crafted Modbus traffic through an affected device. A successful exploit could allow the attacker to cause the Snort process to hang, causing traffic inspection to stop.Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.

Details

Severity HIGH
CVSS Score 7.5
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE CWE-190
Public Exploit ✅ No
Source NVD
Published 2024-11-15
Updated 2026-06-08
Modified 2025-06-24
Fix URL N/A

Affected Packages

Software From version Fixed in
cyber-vision — —
firepower-threat-defense — —
unified-threat-defense-snort-intrusion-prevention-system-engine — —

Similar Threats

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