{"id":"CVE-2021-46195","title":"GCC v12.0 was discovered to contain an uncontrolled recursion via the component libiberty/rust-demangle.c","summary":"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.","severity":"medium","cvss":5.5,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","cwe":["CWE-674"],"vendor":"gnu","product":"gcc","affected":["gcc = 12.0"],"published":"2022-01-14","updated":"2026-10-08","sourceUpdated":"2026-10-08T22:17:14.157","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2021-46195","references":[{"url":"https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103841","label":"cve@mitre.org"},{"url":"https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103841","label":"af854a3a-2127-422b-91ae-364da2661108"}],"tags":["nvd"],"epss":0.00779,"epssPercentile":0.54517,"ingestedAt":"2026-10-08T23:16:47.329Z","slug":"CVE-2021-46195","body":"## Overview\n\nGCC 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.\n\n## Affected\n\n- `gcc = 12.0`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":30.3,"likelihood":0.2,"exploitation":0,"ransomware":0},"changes":[]}