Description
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 truncate to root's identifier, causing su-exec to execute target programs with root privileges instead of intended unprivileged accounts.
Published: 2026-08-29
Score: 8.5 High
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Sat, 29 Aug 2026 14:00:00 +0000

Type Values Removed Values Added
Description 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 truncate to root's identifier, causing su-exec to execute target programs with root privileges instead of intended unprivileged accounts.
Title su-exec through 0.3 Privilege Escalation via Numeric User ID
Weaknesses CWE-681
References
Metrics cvssV3_1

{'score': 7.8, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}

cvssV4_0

{'score': 8.5, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}

Subscriptions

No data.

cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-08-29T13:47:58.176Z

Reserved: 2026-08-29T13:23:00.303Z

Link: CVE-2026-82457

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-08-29T14:16:38.910

Modified: 2026-08-29T14:16:38.910

Link: CVE-2026-82457

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-29T15:30:05Z

Weaknesses
  • CWE-681

    Incorrect Conversion between Numeric Types