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 CPU and memory resources.

CVSS v3 5.5 MEDIUM
CVSS v2.0 4.3 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

4.3^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:M/Au:N/C:N/I:N/A:P

Exploitability : 8.6 / Impact : 2.9

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

References

Link	Resource
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103841	Exploit Issue Tracking Vendor Advisory
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103841	Exploit Issue Tracking Vendor Advisory
https://cert-portal.siemens.com/productcert/html/ssa-398330.html

Configurations

Configuration 1 (hide)

cpe:2.3:a:gnu:gcc:12.0:*:*:*:*:*:*:*

History

14 Oct 2026, 13:17

Type	Values Removed	Values Added
References		() https://cert-portal.siemens.com/productcert/html/ssa-398330.html -

Information

Published : 2022-01-14 20:15

Updated : 2026-10-14 13:17

NVD link : CVE-2021-46195

Mitre link : CVE-2021-46195

CVE.ORG link : CVE-2021-46195

JSON object : View

Products Affected

gnu

gcc

CWE

CWE-674

Uncontrolled Recursion

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