Known exploited vulnerability
CVE-2025-32463
The short answer
CVE-2025-32463 affects Sudo project Sudo and is rated high (CVSS 7.8). CISA added it to the Known Exploited Vulnerabilities catalog on 2025-09-29: attackers are using it, so patch it first.
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.
Weakness: CWE-829.
Severity
7.8 high
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Exploited (CISA KEV)
Yes, since Sep 29, 2025
Federal due date Oct 20, 2025
EPSS, next 30 days
56%
Higher than 99% of scored CVEs
How it can be exploited
- Attack vector
- Local
- Attack complexity
- Low
- Privileges required
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- High
- Integrity impact
- High
- Availability impact
- High
What CISA says to do
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Affected products
Sudo. NVD's record lists the exact affected versions.
References
- access.redhat.com/security/cve/cve-2025-32463 Third Party Advisory
- bugs.gentoo.org/show_bug.cgi?id=CVE-2025-32463 Issue TrackingThird Party Advisory
- explore.alas.aws.amazon.com/CVE-2025-32463.html Third Party Advisory
- security-tracker.debian.org/tracker/CVE-2025-32463 Third Party Advisory
- ubuntu.com/security/notices/USN-7604-1 Third Party Advisory
- www.openwall.com/lists/oss-security/2025/06/30/3 Third Party Advisory
- www.secpod.com/blog/sudo-lpe-vulnerabilities-resolved-what-you-need-to-know-about-cve-2025-32462-and-cve-2025-32463/ ExploitThird Party Advisory
- www.stratascale.com/vulnerability-alert-CVE-2025-32463-sudo-chroot ExploitThird Party Advisory
- www.sudo.ws/releases/changelog/ Release Notes
- www.sudo.ws/security/advisories/ Vendor Advisory
- www.sudo.ws/security/advisories/chroot_bug/ Vendor Advisory
- www.suse.com/security/cve/CVE-2025-32463.html Third Party Advisory
Questions
Is CVE-2025-32463 being exploited?
Yes. CISA added CVE-2025-32463 to its Known Exploited Vulnerabilities catalog on 2025-09-29, with a federal remediation due date of 2025-10-20.
How do I fix CVE-2025-32463?
CISA's 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.
From NVD, CISA KEV, FIRST EPSS and OSV.dev, checked . Status on NVD: Analyzed. The description is NVD's text, quoted as published.
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