CVEs / CVE-2025-32463
CVE-2025-32463: Sudo Inclusion of Functionality from Untrusted Control Sphere Vulnerability
- Known exploited in the CISA KEV catalog since 29 Sep 2025
- high 7.8 CVSS 3.1 (NVD)
- EPSS 55.4% chance of exploitation in the next 30 days, higher than 99% of CVEs (30 Oct 2026)
- Last changed at its sources
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Summary
Sudo contains an inclusion of functionality from untrusted control sphere vulnerability. This vulnerability could allow local attacker to leverage sudo’s -R (--chroot) option to run arbitrary commands as root, even if they are not listed in the sudoers file.
Description
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.
Affected and fixed versions
| Product | Affected | Fixed in |
|---|---|---|
| Sudo project Sudo | from 1.9.14, before 1.9.17p1 | 1.9.17p1 |
Exploitation
| In CISA KEV since | 29 Sep 2025 |
|---|---|
| Due date for US federal agencies | 20 Oct 2025 |
| Used in ransomware campaigns | Unknown |
| Required action | Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. |
Severity
| CVSS 3.1 | 7.8 highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HScored by NVD |
|---|---|
| Weakness | CWE-829 |
References
- CVE-2025-32463 on NVD
- CVE-2025-32463 in the CISA KEV catalog
- https://www.sudo.ws/security/advisories/chroot_bug/ (cited by CISA)
- CVE-2025-32463 on OSV
- https://access.redhat.com/security/cve/cve-2025-32463 Third Party Advisory
- https://bugs.gentoo.org/show_bug.cgi?id=CVE-2025-32463 Issue Tracking, Third Party Advisory
- https://explore.alas.aws.amazon.com/CVE-2025-32463.html Third Party Advisory
- https://security-tracker.debian.org/tracker/CVE-2025-32463 Third Party Advisory
- https://ubuntu.com/security/notices/USN-7604-1 Third Party Advisory
- https://www.openwall.com/lists/oss-security/2025/06/30/3 Third Party Advisory
- https://www.secpod.com/blog/sudo-lpe-vulnerabilities-resolved-what-you-need-to-know-about-cve-2025-32462-and-cve-2025-32463/ Exploit, Third Party Advisory
- https://www.stratascale.com/vulnerability-alert-CVE-2025-32463-sudo-chroot Exploit, Third Party Advisory
- https://www.sudo.ws/releases/changelog/ Release Notes
- https://www.sudo.ws/security/advisories/ Vendor Advisory
- https://www.sudo.ws/security/advisories/chroot_bug/ Vendor Advisory
- https://www.suse.com/security/cve/CVE-2025-32463.html Third Party Advisory
- https://www.suse.com/support/update/announcement/2025/suse-su-202502177-1/ Third Party Advisory
- https://www.vicarius.io/vsociety/posts/cve-2025-32463-detect-sudo-vulnerability Third Party Advisory
- https://www.vicarius.io/vsociety/posts/cve-2025-32463-mitigate-sudo-vulnerability Mitigation, Third Party Advisory
- https://iototsecnews.jp/2025/07/01/linux-sudo-chroot-vulnerability-enables-hackers-to-elevate-privileges-to-root/ Third Party Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-32463 US Government Resource
Sources
Exploitation status from the CISA Known Exploited Vulnerabilities catalog. EPSS scores from FIRST. Descriptions, severity and references from the National Vulnerability Database. Open-source package versions from OSV (CC-BY 4.0). Text is shown as each source states it; Stackurity does not edit it. Check the vendor's advisory before acting.
This product uses data from the NVD API but is not endorsed or certified by the NVD.