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01 Record

CVE-2021-46195

GCC v12.0 was discovered to contain an uncontrolled recursion via the component libiberty/rust-demangle.c. This vulnerability allows attackers to cause a Denial of Service (DoS) by consuming excessive

UnratedPUBLISHEDCNA: mitre
CNA base scoreUnratedNo CNA CVSS vector
View raw JSON

02 Description

GCC v12.0 was discovered to contain an uncontrolled recursion via the component libiberty/rust-demangle.c. This vulnerability allows attackers to cause a Denial of Service (DoS) by consuming excessive

03 Exploitation and scoring

Exploitation
Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
SSVC decision
  • ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
  • AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
  • Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
0.79% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 56.1% of scored records. A rank, not a probability.
NVD base score
5.5 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
NVD analysis status
Modified. NVD last modified this record on 2026-10-14.
Red Hat severity
Low. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2022-01-14 19:16Z4 YR AGO
Last updated
2026-10-14 12:07Z15 DAYS AGO
Reserved
2022-01-10
Assigning CNA
mitre
Record state
PUBLISHED
Severity
Not rated by the issuing CNA
CNA CVSS vector
Not published by the issuing CNA
Weaknesses
Data version
5.2
Document digest
6e4d9552ef4dce44a05ba3b41ba810526a9a82e668b38d9dab2e17df727457ef

05 Affected products

VendorProductVersionsPlatforms
gnugccNot specified—
redhatenterprise_linuxNot specified—

06 References

07 Fixed in

AlmaLinux 9

  • mingw32-cpp
    Fixed in 12.0.1-11.2.el9
  • mingw32-gcc
    Fixed in 12.0.1-11.2.el9
  • mingw32-gcc-c++
    Fixed in 12.0.1-11.2.el9
  • mingw32-libgcc
    Fixed in 12.0.1-11.2.el9
  • mingw64-cpp
    Fixed in 12.0.1-11.2.el9
  • mingw64-gcc
    Fixed in 12.0.1-11.2.el9
  • mingw64-gcc-c++
    Fixed in 12.0.1-11.2.el9
  • mingw64-libgcc
    Fixed in 12.0.1-11.2.el9

Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

CloudLinux 9

  • mingw32-cpp
    Fixed in 12.0.1-11.2.el9
  • mingw32-gcc
    Fixed in 12.0.1-11.2.el9
  • mingw32-gcc-c++
    Fixed in 12.0.1-11.2.el9
  • mingw32-libgcc
    Fixed in 12.0.1-11.2.el9
  • mingw64-cpp
    Fixed in 12.0.1-11.2.el9
  • mingw64-gcc
    Fixed in 12.0.1-11.2.el9
  • mingw64-gcc-c++
    Fixed in 12.0.1-11.2.el9
  • mingw64-libgcc
    Fixed in 12.0.1-11.2.el9

Derived from AlmaLinux 9. Partial coverage: only packages taken from AlmaLinux 9 are listed.

Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

Debian 12

  • binutils
    Fixed in 2.37.90.20220207-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 13

  • binutils
    Fixed in 2.37.90.20220207-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

  • binutils
    Fixed in 2.37.90.20220207-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 22.04 LTS

  • gcc-11
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 24.04 LTS

  • gcc-11
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 25.10

  • gcc-11
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 26.04 LTS

  • gcc-11
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 26.10

  • gcc-11
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.