VULNERABILITY INTELLIGENCE
CVE-2021-1495
CVSS score5.8 MEDIUM
EPSS probability1.73%
CISA KEVNot currently listed
Published2021-04-29
Last modified2026-08-11
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
- CWE-755: Improper Handling of Exceptional Conditions