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CVE PROGRAM SOURCE RECORD5.8 Medium

CVE-2026-76489

Multiple Cisco Products Snort 3 Generic File Processing Memory Exhaustion Denial of Service Vulnerability

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Status
Published
Published
Updated
Assigning organization
cisco

Description

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Cisco Cisco Open Source Snort3

Default version status: unknown

  • 3.12.2.0affected
  • 3.1.2.0affected
  • 3.1.3.0affected
  • 3.1.4.0affected
  • 3.1.5.0affected
  • 3.1.6.0affected
  • 3.1.7.0affected
  • 3.1.8.0affected
  • 3.1.9.0affected
  • 3.1.10.0affected
  • 3.1.12.0affected
  • 3.1.13.0affected
  • 3.1.14.0affected
  • 3.1.15.0affected
  • 3.1.16.0affected
  • 3.1.17.0affected
  • 3.1.18.0affected
  • 3.1.19.0affected
  • 3.1.20.0affected
  • 3.1.21.0affected
  • 3.1.22.0affected
  • 3.1.23.0affected
  • 3.1.24.0affected
  • 3.1.25.0affected
  • 3.1.27.0affected
  • 3.1.28.0affected
  • 3.1.29.0affected
  • 3.1.30.0affected
  • 3.1.31.0affected
  • 3.1.32.0affected
  • 3.1.36.0affected
  • 3.1.38.0affected
  • 3.1.39.0affected
  • 3.1.40.0affected
  • 3.1.41.0affected
  • 3.1.42.0affected
  • 3.1.43.0affected
  • 3.1.45.0affected
  • 3.1.47.0affected
  • 3.1.48.0affected
  • 3.1.50.0affected
  • 3.1.51.0affected
  • 3.1.52.0affected
  • 3.1.53.0affected
  • 3.1.55.0affected
  • 3.1.56.0affected
  • 3.1.57.0affected
  • 3.1.58.0affected
  • 3.1.59.0affected
  • 3.1.60.0affected
  • 3.1.61.0affected
  • 3.1.62.0affected
  • 3.1.63.0affected
  • 3.1.64.0affected
  • 3.1.65.0affected
  • 3.1.66.0affected
  • 3.1.67.0affected
  • 3.1.69.0affected
  • 3.1.70.0affected
  • 3.1.71.0affected
  • 3.1.72.0affected
  • 3.1.73.0affected
  • 3.1.74.0affected
  • 3.1.75.0affected
  • 3.1.76.0affected
  • 3.1.77.0affected
  • 3.1.78.0affected
  • 3.1.81.0affected
  • 3.1.82.0affected
  • 3.1.83.0affected
  • 3.1.84.0affected
  • 3.2.1.0affected
  • 3.2.2.0affected
  • 3.3.0.0affected
  • 3.3.1.0affected
  • 3.3.2.0affected
  • 3.3.3.0affected
  • 3.3.4.0affected
  • 3.3.5.0affected
  • 3.3.7.0affected
  • 3.5.0.0affected
  • 3.5.1.0affected
  • 3.8.1.0affected
  • 3.6.0.0affected
  • 3.6.2.0affected
  • 3.9.3.0affected
  • 3.7.2.0affected
  • 3.7.0.0affected
  • 3.9.6.0affected
  • 3.10.0.0affected
  • 3.10.2.0affected
  • 3.7.4.0affected
  • 3.9.0.0affected
  • 3.5.2.0affected
  • 3.12.1.0affected
  • 3.6.1.0affected
  • 3.9.2.0affected
  • 3.6.3.0affected
  • 3.9.5.0affected
  • 3.7.1.0affected
  • 3.9.7.0affected
  • 3.7.3.0affected
  • 3.10.1.0affected
  • 3.9.1.0affected
  • 3.11.1.0affected

Cisco Cisco Secure Firewall Threat Defense (FTD) Software

Default version status: unknown

  • 7.0.0affected
  • 7.0.0.1affected
  • 7.0.1affected
  • 7.0.1.1affected
  • 7.0.2affected
  • 7.2.0affected
  • 7.0.2.1affected
  • 7.0.3affected
  • 7.2.0.1affected
  • 7.0.4affected
  • 7.2.1affected
  • 7.0.5affected
  • 7.3.0affected
  • 7.2.2affected
  • 7.2.3affected
  • 7.3.1affected
  • 7.2.4affected
  • 7.0.6affected
  • 7.2.5affected
  • 7.2.4.1affected
  • 7.3.1.1affected
  • 7.4.0affected
  • 7.0.6.1affected
  • 7.2.5.1affected
  • 7.4.1affected
  • 7.2.6affected
  • 7.0.6.2affected
  • 7.4.1.1affected
  • 7.2.7affected
  • 7.2.5.2affected
  • 7.3.1.2affected
  • 7.2.8affected
  • 7.6.0affected
  • 7.4.2affected
  • 7.2.8.1affected
  • 7.0.6.3affected
  • 7.4.2.1affected
  • 7.2.9affected
  • 7.0.7affected
  • 7.7.0affected
  • 7.4.2.2affected
  • 7.6.1affected
  • 7.4.2.3affected
  • 7.0.8affected
  • 7.6.2affected
  • 7.7.10affected
  • 7.7.11affected
  • 7.0.8.1affected
  • 7.6.2.1affected
  • 7.7.10.1affected
  • 7.4.2.4affected
  • 7.4.3affected
  • 7.6.4affected
  • 10.0.0affected
  • 7.4.4affected
  • 7.0.9affected
  • 7.4.7affected

References