VULNERABILITY INTELLIGENCE

CVE-2021-1494

CVSS score5.8 MEDIUM
EPSS probability1.10%
CISA KEVNot currently listed
Published2024-11-15
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N

Description

Multiple Cisco products are affected by a vulnerability in the Snort detection engine that could allow an unauthenticated, remote attacker to bypass a configured file policy for HTTP. The vulnerability is due to incorrect handling of specific HTTP header parameters. An attacker could exploit this vulnerability by sending crafted HTTP packets through an affected device. A successful exploit could allow the attacker to bypass a configured file policy for HTTP packets and deliver a malicious payload.

Weakness classification

  • psirt@cisco.com: CWE-693

Primary references