Description
In Sudo through 1.9.17p2 before 3e474c2, a failure of a setuid, setgid, or setgroups call, during a privilege drop before running the mailer, is not a fatal error and can lead to privilege escalation.
Affected products
sudo_project: sudo; siemens: sinec os; siemens: ruggedcom rst2428p
References10
- github.com/sudo-project/sudo/commit/3e474c2f201484be83d994ae10a… Patch
- bugs.debian.org/1130593 Broken Link
- bugs.launchpad.net/ubuntu/+source/sudo/+bug/2143042 Issue Tracking
- www.qualys.com/2026/03/10/crack-armor.txt Third Party Advisory
- lists.debian.org/debian-lts-announce/2026/06/msg00003.html
- access.redhat.com/errata/RHSA-2026:10758
- access.redhat.com/errata/RHSA-2026:11521
- access.redhat.com/errata/RHSA-2026:12310
- access.redhat.com/errata/RHSA-2026:13731
- access.redhat.com/errata/RHSA-2026:13888
Metrics
- CVSS 3.1
-
7.8
HIGH
Score source: NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - EPSS — exploit probability
- 0% percentile: 7 · as of 12 November 2026
- CWE
- CWE-271CWE-272
Could this be exploited in your environment?
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