{"id":"CVE-2026-82457","title":"su-exec through 0.3 fails to validate numeric user and group identifiers parsed with strtol before assigning to uid_t and gid_t, allowing truncation of out-of-range values to zero","summary":"su-exec through 0.3 fails to validate numeric user and group identifiers parsed with strtol before assigning to uid_t and gid_t, allowing truncation of out-of-range values to zero. Attackers can supply large numeric identifiers that trun…","severity":"high","cvss":7.8,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-681"],"published":"2026-08-29","updated":"2026-09-23","sourceUpdated":"2026-09-23T17:17:46.257","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-82457","references":[{"url":"https://gist.github.com/thesmartshadow/ed96e2a88643c34a247c9b7cf9e311be","label":"disclosure@vulncheck.com"},{"url":"https://github.com/ncopa/su-exec","label":"disclosure@vulncheck.com"},{"url":"https://github.com/ncopa/su-exec/blob/89c016e6e08749d583efdeda04b9f73e1218e253/su-exec.c","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/su-exec-through-0.3-privilege-escalation-via-numeric-user-id","label":"disclosure@vulncheck.com"},{"url":"https://gist.github.com/thesmartshadow/ed96e2a88643c34a247c9b7cf9e311be","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"tags":["nvd","cve.org","exploit-available"],"epss":0.0012,"epssPercentile":0.02061,"ingestedAt":"2026-08-30T07:49:08.847Z","vendor":"ncopa","product":"su-exec","affected":["su-exec <= 0.3"],"exploitAvailable":true,"ssvc":{"exploitation":"poc","automatable":"no","technicalImpact":"total","timestamp":"2026-09-01T02:10:20.796890Z"},"slug":"CVE-2026-82457","body":"## Overview\n\nsu-exec through 0.3 fails to validate numeric user and group identifiers parsed with strtol before assigning to uid_t and gid_t, allowing truncation of out-of-range values to zero. Attackers can supply large numeric identifiers that truncate to root's identifier, causing su-exec to execute target programs with root privileges instead of intended unprivileged accounts.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"midnight","depthScore":55,"depthScoreParts":{"impact":42.9,"likelihood":0,"exploitation":12,"ransomware":0},"changes":[{"seq":210232,"id":"CVE-2026-82457","ts":1790264815963,"field":"exploit_available","old":"false","new":"true"}]}