CVE-2021-37322

Name: CVE-2021-37322
Creator: NVD / NIST
Published: 2021-11-18T22:15:07.6+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.8/10EPSS 0.85%

Last modified Jun 17, 2026

CVE-2021-37322 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. GCC c++filt v2.26 was discovered to contain a use-after-free vulnerability via the component cplus-dem.c.. EPSS estimates a 0.85% chance of exploitation in the next 30 days.

Description

GCC c++filt v2.26 was discovered to contain a use-after-free vulnerability via the component cplus-dem.c.

Metrics

CVSS 3.1

7.8/10

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

EPSS Probability

0.85%

53.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-416

Affected Software

Vendor	Product	Versions
Gnu	Binutils	< 2.32
Gnu	Gcc	< 10.1

References

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99188Exploit, Issue Tracking, Vendor Advisory
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99188Exploit, Issue Tracking, Vendor Advisory

Timeline

Published: Nov 18, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-37322?

GCC c++filt v2.26 was discovered to contain a use-after-free vulnerability via the component cplus-dem.c.

How severe is CVE-2021-37322?

CVE-2021-37322 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.85% probability of exploitation in the next 30 days.

How do I fix CVE-2021-37322?

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-2021-37322?

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

Scan your code now

Source: NVD / NIST