CVE-2025-32463
What it is
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.
At a glance
- Exploitability
- Can be exploited locally on the machine without logging in. High risk of data exposure, data tampering, service disruption.
- In the wild
- CISA lists this as exploited in real attacks. Treat as urgent.
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- ReservedThe CVE id was reserved by its CNA
- PublishedDisclosed publicly on CVE.org and NVD
- 2025-09-29 Exploited in the wildAdded to CISA's Known Exploited Vulnerabilities list
- 2025-10-20 Remediation deadlineCISA's due date for federal agencies to fix it
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: yes, CISA lists it. This puts it above everything that is not.
- Exploit odds: 56.3% in the next 30 days (EPSS).
- Severity: 9.3 CRITICAL (CVSS).
- Fix: a patch or advisory is linked.
- It meets the bar for Drop everything: critical, and exploited or very likely to be.
Details
- Published
- Last modified
- Added to CISA KEV
- 2025-09-29
- Exploit probability
- 56.3% · EPSS, next 30 days
- Weakness
- CWE-829
- Record status
- Analyzed
Affected
- Sudo Project Sudo < 1.9.17
- Sudo Project Sudo 1.9.17
- Canonical Ubuntu Linux 22.04
- Canonical Ubuntu Linux 24.04
- Canonical Ubuntu Linux 24.10
- Canonical Ubuntu Linux 25.04
- Debian Linux 11.0
- Debian Linux 12.0
Attack profile CVSS 3.1 · 9.3
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
- Scope
- Changed
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Raw vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2025-32463.md and follow it. Check whether this project is affected by CVE-2025-32463. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://www.sudo.ws/security/advisories/
- https://www.sudo.ws/security/advisories/chroot_bug/
- https://www.vicarius.io/vsociety/posts/cve-2025-32463-mitigate-sudo-vulnerability
References
- https://access.redhat.com/security/cve/cve-2025-32463
- https://bugs.gentoo.org/show_bug.cgi?id=CVE-2025-32463
- https://explore.alas.aws.amazon.com/CVE-2025-32463.html
- https://security-tracker.debian.org/tracker/CVE-2025-32463
- https://ubuntu.com/security/notices/USN-7604-1
- https://www.openwall.com/lists/oss-security/2025/06/30/3
- https://www.secpod.com/blog/sudo-lpe-vulnerabilities-resolved-what-you-need-to-know-about-cve-2025-32462-and-cve-2025-32463/
- https://www.stratascale.com/vulnerability-alert-CVE-2025-32463-sudo-chroot
- https://www.sudo.ws/releases/changelog/
- https://www.sudo.ws/security/advisories/
- https://www.sudo.ws/security/advisories/chroot_bug/
- https://www.suse.com/security/cve/CVE-2025-32463.html
- https://www.suse.com/support/update/announcement/2025/suse-su-202502177-1/
- https://www.vicarius.io/vsociety/posts/cve-2025-32463-detect-sudo-vulnerability
- https://www.vicarius.io/vsociety/posts/cve-2025-32463-mitigate-sudo-vulnerability
- https://iototsecnews.jp/2025/07/01/linux-sudo-chroot-vulnerability-enables-hackers-to-elevate-privileges-to-root/
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-32463