CVE-2026-82457: Incorrect Conversion between Numeric Types in ncopa su-exec
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.
CVE-2026-82457: Incorrect Conversion between Numeric Types in ncopa su-exec
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.
CVSS v4.0
Score 8.5high
Affected software
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Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulnCheck
- Date Reserved
- 2026-08-29T13:23:00.303Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a92e429acd9273b49d3586b
Added to database: 08/29/2026, 13:52:41 UTC
Last updated: 08/29/2026, 13:52:41 UTC
Views: 1
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