CVE-2025-32463
Sudo Inclusion of Functionality from Untrusted Control Sphere Vulnerability
Does this matter?
Known to be exploited in the wild (CISA KEV, CISA remediation deadline 20 October 2025). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.
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.
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 55.50% probability · 99th percentile
- Public exploits
- 1 in Exploit-DB · first 8 July 2025
- CISA KEV
- Listed 29 September 2025 · due 20 October 2025
- Weakness
- CWE-829
- Affected
- sudo project/sudo · canonical/ubuntu linux · debian/debian linux · opensuse/leap · redhat/enterprise linux · suse/linux enterprise desktop · suse/linux enterprise real time · suse/linux enterprise server for sap
- Source
- cve@mitre.org
EPSS moved from 61.0% on 20 September 2026 to 55.5% on 30 October 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.
CISA notes
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. This vulnerability could affect an open-source component, third-party library, protocol, or proprietary implementation that could be used by different products. For more information, please see: https://www.sudo.ws/security/advisories/chroot_bug/ ; https://nvd.nist.gov/vuln/detail/CVE-2025-32463
Public exploits (1)
Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.
References
- https://access.redhat.com/security/cve/cve-2025-32463Third Party Advisory
- https://bugs.gentoo.org/show_bug.cgi?id=CVE-2025-32463Issue Tracking, Third Party Advisory
- https://explore.alas.aws.amazon.com/CVE-2025-32463.htmlThird Party Advisory
- https://security-tracker.debian.org/tracker/CVE-2025-32463Third Party Advisory
- https://ubuntu.com/security/notices/USN-7604-1Third Party Advisory
- https://www.openwall.com/lists/oss-security/2025/06/30/3Third 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-chrootExploit, 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.htmlThird 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-vulnerabilityThird Party Advisory
- https://www.vicarius.io/vsociety/posts/cve-2025-32463-mitigate-sudo-vulnerabilityMitigation, 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-2025-32463US Government Resource
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.