CVE-2018-6703

Name: CVE-2018-6703
Creator: NVD / NIST
Published: 2018-12-11T23:29:00.983+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 3.23%

Last modified Jun 17, 2026

CVE-2018-6703 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. Use After Free in Remote logging (which is disabled by default) in McAfee McAfee Agent (MA) 5.x prior to 5.6.0 allows remote unauthenticated attackers to cause a Denial of Service and potentially a remote code execution via a specially crafted HTTP header sent to the logging service.. EPSS estimates a 3.23% chance of exploitation in the next 30 days.

Description

Use After Free in Remote logging (which is disabled by default) in McAfee McAfee Agent (MA) 5.x prior to 5.6.0 allows remote unauthenticated attackers to cause a Denial of Service and potentially a remote code execution via a specially crafted HTTP header sent to the logging service.

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

3.23%

86.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-416

Affected Software

Vendor	Product	Versions
Mcafee	Agent	>= 5.0.0, < 5.6.0

References

Timeline

Published: Dec 11, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-6703?

How severe is CVE-2018-6703?

CVE-2018-6703 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 3.23% probability of exploitation in the next 30 days.

How do I fix CVE-2018-6703?

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-2018-6703?

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

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Source: NVD / NIST