CVE-2026-35535: High severity Microsoft azl3 sudo 1.9.17-1 vulnerability

Published Apr 3, 2026
·
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.

Affected Software

9 affected componentsFixes available
Microsoft azl3 sudo 1.9.17-1
Microsoft cbl2 sudo 1.9.17-1
IBM QRadar<=7.5.0 - 7.5.0 UP15 IF02
Sudo Project Sudo<1.9.17
Sudo Project Sudo=1.9.17
Sudo Project Sudo=1.9.17-p1
Sudo Project Sudo=1.9.17-p2
All of the following
Siemens Sinec Os<4.0
Siemens Ruggedcom Rst2428p

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade Sudo to a version that resolves this vulnerability.

    Patch 3e474c2

Event History

Apr 3, 2026
CVE Published
via MITRE·02:21 AM
Data Sourced
via MITRE·02:21 AM
DescriptionSeverityWeakness
Data Sourced
via Red Hat·03:01 AM
DescriptionSeverityAffected Software
Data Sourced
via NVD·03:16 AM
RemedyDescriptionSeverityWeaknessAffected Software
Apr 5, 2026
Data Sourced
via Microsoft·08:02 AM
DescriptionSeverityWeaknessAffected Software
Updated
via Microsoft·08:02 AM
Affected Software
Updated
via Microsoft·08:02 AM
Severity
May 25, 2026
Data Sourced
via IBM·12:00 AM
DescriptionAffected Software

Parent advisories

This vulnerability appears in the following advisories.

Frequently Asked Questions

1

What is the severity of CVE-2026-35535?

CVE-2026-35535 is classified as a high severity vulnerability due to its potential to allow privilege escalation.

2

How do I fix CVE-2026-35535?

To fix CVE-2026-35535, update Sudo to a version that includes patches addressing this vulnerability.

3

What software is affected by CVE-2026-35535?

CVE-2026-35535 affects Sudo versions before 1.9.17p2.

4

Can CVE-2026-35535 lead to exploitation?

Yes, CVE-2026-35535 can lead to exploitation by allowing local attackers to escalate privileges.

5

What is the impact of CVE-2026-35535 on system security?

CVE-2026-35535 impacts system security by potentially enabling unauthorized users to gain elevated privileges.

Contact

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