CVE-2016-6354

Name: CVE-2016-6354
Creator: NVD / NIST
Published: 2016-09-21T14:25:20.8+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 8.84%

Last modified Jun 17, 2026

CVE-2016-6354 is a vulnerability of currently unknown severity. Heap-based buffer overflow in the yy_get_next_buffer function in Flex before 2.6.1 might allow context-dependent attackers to cause a denial of service or possibly execute arbitrary code via vectors involving num_to_read.. EPSS estimates a 8.84% chance of exploitation in the next 30 days.

Description

Heap-based buffer overflow in the yy_get_next_buffer function in Flex before 2.6.1 might allow context-dependent attackers to cause a denial of service or possibly execute arbitrary code via vectors involving num_to_read.

Metrics

EPSS Probability

8.84%

94.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-119

Affected Software

Vendor	Product	Versions
Debian	Debian Linux	8.0
Westes	Flex	<= 2.6.0

References

http://www.debian.org/security/2016/dsa-3653Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/07/18/8Release Notes, Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/07/26/12Release Notes, Third Party Advisory
https://github.com/westes/flex/commit/a5cbe929ac3255d371e698f62dc256afe7006466Patch
https://security.gentoo.org/glsa/201701-31
http://www.debian.org/security/2016/dsa-3653Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/07/18/8Release Notes, Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/07/26/12Release Notes, Third Party Advisory
https://github.com/westes/flex/commit/a5cbe929ac3255d371e698f62dc256afe7006466Patch
https://security.gentoo.org/glsa/201701-31

Timeline

Published: Sep 21, 2016
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2016-6354?

How severe is CVE-2016-6354?

Severity scoring for CVE-2016-6354 is pending analysis. The EPSS model estimates a 8.84% probability of exploitation in the next 30 days.

How do I fix CVE-2016-6354?

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-2016-6354?

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

Scan your code now

Source: NVD / NIST