VULNERABILITY INTELLIGENCE

CVE-2018-0272

CVSS score5.9 MEDIUM

EPSS probability1.26%

CISA KEVNot currently listed

Published2018-04-19

Last modified2026-06-17

CVSS vectorCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Description

A vulnerability in the Secure Sockets Layer (SSL) Engine of Cisco Firepower System Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition. The vulnerability is due to improper error handling while processing SSL traffic. An attacker could exploit this vulnerability by sending a large volume of crafted SSL traffic to the vulnerable device. A successful exploit could allow the attacker to degrade the device performance by triggering a persistent high CPU utilization condition. Cisco Bug IDs: CSCvh89340.

Weakness classification

CWE-755: Improper Handling of Exceptional Conditions

Primary references

psirt@cisco.com — Third Party Advisory, VDB Entry
psirt@cisco.com — Mitigation, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108 — Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108 — Mitigation, Vendor Advisory