Vulnerability · CVE-2026-35535
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…
Published Apr 3, 2026 · catalog updated Sep 1, 2026 · sudo project
Last checked Oct 29, 2026. A connected source was read within the last 7 days.
Check if you run it
No confirmed exploitation is on record for CVE-2026-35535. EPSS is 0.17%. Act only if a listed version of sudo project is installed.
Gaps on this record
- No vendor fix or required action is stored. Compare the linked advisory before you change production.
Same product and reporting
- CVE-2025-32463 · Critical · known exploited
- Severity
- High7.8
- Known exploitation
- Not in CISA/VulnCheck KEV
- EPSS
- 0.17%
- Remediation
- Version ranges on file
- Affected products
- cpe siemens/sinec os · cpe sudo project/sudo
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.
Are you affected?
Enter the version you run. The result uses only the ranges stored on this record.
The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.
- cpe siemens/sinec os< 4.0
- cpe sudo project/sudo1.9.17
- cpe sudo project/sudo< 1.9.17
How to fix CVE-2026-35535
Upgrade
CVE-2026-35535 lists a fix boundary at 4.0. Compare the installed build with that boundary before you change production.
Version check
Affected < 4.0
Advisory
Open the cve_org record and follow its fix.
Official advisories
What to do
Three questions, each answered from this record only. Confirm the vendor advisory before you patch.
Should you patch?
No confirmed exploitation is on record for CVE-2026-35535. EPSS is 0.17%. Act only if a listed version of sudo project is installed.
Which versions are affected?
Compare what you have installed with siemens/sinec os < 4.0; sudo project/sudo 1.9.17; sudo project/sudo < 1.9.17. Compare the installed version with the linked vendor advisory before you change production.
What should an analyst verify?
CWE-271; CWE-272. EPSS 0.17%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.
Code
The project this record applies to. Exploit listings stay in References.
Timeline
Detection, updates, and resolution for this record.
Apr 3, 2026 · NIST NVD
Detected
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.
Sep 1, 2026 · NIST NVD
Updated
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.
Sources
- CVE.orgVulnerability recordCVE-2026-35535
Official CVE identifier
cve.org - FIRST EPSSExploitation probabilityCVE-2026-35535
30-day exploitation probability 0.17%
first.org - NIST NVDVulnerability recordCVE-2026-35535
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.
nvd.nist.gov
References
Freshness
Last verified in this catalog Oct 29, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.
- FIRST EPSSOct 23, 2026
- NIST NVDOct 20, 2026
- CVE.orgOct 16, 2026