CVE-2021-1495

CVE-2021-1495CVE-2021-1495

cisco / secure_firewall_threat_defense

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.

Scoring

CVSS 5.8 ()
VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N
Last modified2026-08-11
Sourced from NVD. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.