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No exploitation reportedFix available

CVE-2021-37322

No exploitation reported by the sources we read.

  • Published2021-11-18
  • Fixed in2.32
  • WeaknessCWE-416

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

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

Timeline

dates in UTC
  1. 2021-11-1822:15CVE publishedNVD

Versions per branch

NVD
Gnu binutils
BranchAffectedFixed in
2.32< 2.322.32
Gnu gcc
BranchAffectedFixed in
10.1< 10.110.1

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • binutilsUbuntu:Pro:16.04:LTSall versions · fixed in 2.26.1-1ubuntu1~16.04.8+esm1
  • binutilsUbuntu:Pro:14.04:LTSall versions · no fixed version listed
  • binutilsDebian:14all versions · fixed in 2.27.51.20161102-1
  • binutilsDebian:13all versions · fixed in 2.27.51.20161102-1
  • binutilsDebian:12all versions · fixed in 2.27.51.20161102-1
  • gcc-6Wolfiall versions · fixed in 0
  • gcc-6Chainguardall versions · fixed in 0

Vendor advisories

  • CVE-2021-37322 Red Hat Product Security5 known affected

    binutils: use-after-free in c++filt in cplus-dem.c

    binutils-devel as a component of Red Hat Enterprise Linux 6 · binutils.src as a component of Red Hat Enterprise Linux 6 · binutils as a component of Red Hat Enterprise Linux 7 · +2 more

Full record on NVD

Fix

  1. Update Gnu binutils to 2.32
  2. No fix planned, says the vendor Red Hat Product Security CVE-2021-37322 · 5 productsOut of support scope

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Published
2021-11-18
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-6f99-ppjg-wgj7

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.

Is CVE-2021-37322 actively exploited?

Active exploitation of CVE-2021-37322 has not been confirmed. Its EPSS score was 0.9% on 2026-11-09, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2021-37322?

CVE-2021-37322 has a CVSS v3 base score of 7.8 (HIGH severity), with vector string CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

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