CVE-2025-32463 — Sudo Inclusion of Functionality from Untrusted Control Sphere Vulnerability

Sudo before 1.9.17p1 allows local users to obtain root access because /etc/nsswitch.conf from a user-controlled directory is used with the --chroot option.

01What is this vulnerability?

Sudo before 1.9.17p1 allows local users to obtain root access because /etc/nsswitch.conf from a user-controlled directory is used with the --chroot option.

02Affected products

Vendor	Product	Versions
Sudo project	Sudo	1.9.14

03Active exploitation status

Yes — actively exploited. Added to the CISA KEV catalog on 2025-09-29. Ransomware use: Unknown.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Open the Sigma generator with a pre-filled prompt for this CVE to draft a starting detection in your stack of choice:

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07Related CVEs

08Timeline

• Published: 2025-06-30T00:00:00.000Z
• Last modified: 2026-02-26T17:50:20.931Z
• Added to CISA KEV: 2025-09-29
• BOD 22-01 due: 2025-10-20

09References

• www.sudo.ws — https://www.sudo.ws/security/advisories/
• www.sudo.ws — https://www.sudo.ws/releases/changelog/
• www.stratascale.com — https://www.stratascale.com/vulnerability-alert-CVE-2025-32463-sudo-chroot
• www.openwall.com — https://www.openwall.com/lists/oss-security/2025/06/30/3
• access.redhat.com — https://access.redhat.com/security/cve/cve-2025-32463
• ubuntu.com — https://ubuntu.com/security/notices/USN-7604-1
• security-tracker.debian.org — https://security-tracker.debian.org/tracker/CVE-2025-32463
• explore.alas.aws.amazon.com — https://explore.alas.aws.amazon.com/CVE-2025-32463.html
• bugs.gentoo.org — https://bugs.gentoo.org/show_bug.cgi?id=CVE-2025-32463
• www.suse.com — https://www.suse.com/support/update/announcement/2025/suse-su-202502177-1/
• www.suse.com — https://www.suse.com/security/cve/CVE-2025-32463.html
• www.secpod.com — https://www.secpod.com/blog/sudo-lpe-vulnerabilities-resolved-what-you-need-to-k…
• www.sudo.ws — https://www.sudo.ws/security/advisories/chroot_bug/
• www.vicarius.io — https://www.vicarius.io/vsociety/posts/cve-2025-32463-detect-sudo-vulnerability
• www.vicarius.io — https://www.vicarius.io/vsociety/posts/cve-2025-32463-mitigate-sudo-vulnerabilit…