PT-2026-120702

CVE-2026-76489

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Published

2026-10-21

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Updated

2026-10-22

Description by

CVSS 3.1
5.8
Medium
MetricsAV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L
🚨 CVE-2026-76489 Multiple Cisco products are affected by a vulnerability in the memory management implementation of Snort 3 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 error checking when Snort 3 processes files, which could cause unreleased memory. An attacker could exploit this vulnerability by sending a large number of files to be processed. A successful exploit could allow the attacker to cause the Snort 3 Detection Engine to restart unexpectedly, resulting in a DoS condition.
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