CVE-2026-20005

MediumCVSS 5.8/10Last modified Sep 1, 2026

Description

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.

Metrics

CVSS 3.1 5.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L

Weakness enumeration

CWE-392

Affected software

No affected versions have been published.

Timeline

Published
Mar 4, 2026
Last modified
Sep 1, 2026
NVD status
Analyzed

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CVE-2026-20005: Medium severity, CVSS 5.8 | Vulnix