CVE-2018-0272

Name: CVE-2018-0272
Creator: NVD / NIST
Published: 2018-04-19T20:29:01.643+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 1.34%

Last modified Jun 17, 2026

CVE-2018-0272 is a vulnerability of currently unknown severity. 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. EPSS estimates a 1.34% chance of exploitation in the next 30 days.

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.

Metrics

EPSS Probability

1.34%

67.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Cisco	Firepower	6.2.1
Cisco	Firepower	6.2.2.1

References

http://www.securityfocus.com/bid/103925Third Party Advisory, VDB Entry
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180418-firepowerMitigation, Vendor Advisory
http://www.securityfocus.com/bid/103925Third Party Advisory, VDB Entry
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180418-firepowerMitigation, Vendor Advisory

Timeline

Published: Apr 19, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-0272?

How severe is CVE-2018-0272?

Severity scoring for CVE-2018-0272 is pending analysis. The EPSS model estimates a 1.34% probability of exploitation in the next 30 days.

How do I fix CVE-2018-0272?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-0272?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST