CVE-2025-32463

CVE-2025-32463 is a critical-severity vulnerability in Sudo Project Sudo with a CVSS 3.x base score of 9.3. It is listed in CISA's Known Exploited Vulnerabilities (KEV) catalog, confirming it has been exploited in the wild (added 2025-09-29). The underlying weakness is classified as CWE-829.

Key facts

• Severity: Critical (CVSS 3.x base score 9.3)
• EPSS exploit prediction: 47% (99th percentile)
• Actively exploited: Yes — listed in CISA KEV (added 2025-09-29)
• EU (EUVD) id: EUVD-2025-19673
• EU exploitation: Flagged exploited in the ENISA EU Vulnerability Database (since 2025-09-29)
• Weakness: CWE-829
• Affected product: Sudo Project Sudo
• Published: 2025-06-30
• Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2025-32463?

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.

How severe is CVE-2025-32463?

CVE-2025-32463 has a CVSS 3.x base score of 9.3, rated critical severity. It is exploitable over local access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2025-32463 being actively exploited?

Yes. CVE-2025-32463 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2025-09-29, which means active exploitation has been confirmed. It should be prioritised for remediation.

What products are affected by CVE-2025-32463?

CVE-2025-32463 primarily affects Sudo Project Sudo. In total, 18 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2025-32463?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.

Does CVE-2025-32463 have an EU (EUVD) identifier?

Yes. CVE-2025-32463 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-19673. It is also flagged as exploited in the EUVD (since 2025-09-29).

When was CVE-2025-32463 published?

CVE-2025-32463 was published on 2025-06-30 and last updated on 2026-06-17.

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

Affected products (18)

• cpe:2.3:a:sudo_project:sudo:*:*:*:*:*:*:*:*
• cpe:2.3:a:sudo_project:sudo:1.9.17:-:*:*:*:*:*:*
• cpe:2.3:o:canonical:ubuntu_linux:22.04:*:*:*:lts:*:*:*
• cpe:2.3:o:canonical:ubuntu_linux:24.04:*:*:*:lts:*:*:*
• cpe:2.3:o:canonical:ubuntu_linux:24.10:*:*:*:-:*:*:*
• cpe:2.3:o:canonical:ubuntu_linux:25.04:*:*:*:-:*:*:*
• cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
• cpe:2.3:o:debian:debian_linux:12.0:*:*:*:*:*:*:*
• cpe:2.3:o:debian:debian_linux:13.0:*:*:*:*:*:*:*
• cpe:2.3:o:opensuse:leap:15.6:*:*:*:*:*:*:*
• cpe:2.3:o:redhat:enterprise_linux:10.0:*:*:*:*:*:*:*
• cpe:2.3:o:suse:linux_enterprise_desktop:15:sp6:*:*:*:*:*:*
• cpe:2.3:o:suse:linux_enterprise_desktop:15:sp7:*:*:*:*:*:*
• cpe:2.3:o:suse:linux_enterprise_real_time:15.0:sp2:*:*:*:*:*:*
• cpe:2.3:o:suse:linux_enterprise_real_time:15.0:sp6:*:*:*:*:*:*
• cpe:2.3:o:suse:linux_enterprise_real_time:15.0:sp7:*:*:*:*:*:*
• cpe:2.3:o:suse:linux_enterprise_server_for_sap:12:sp6:*:*:*:*:*:*
• cpe:2.3:o:suse:linux_enterprise_server_for_sap:12:sp7:*:*:*:*:*:*

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