CVE-2025-32463
HighExploitedPublic exploitSudo 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.
Published Jun 30, 2025 · Updated Oct 8, 2026 · Also known as DEBIAN-CVE-2025-32463, UBUNTU-CVE-2025-32463, USN-7604-1
Key Facts
Patch immediately- CVE-2025-32463 is a high-severity vulnerability (CVSS 7.8 v3.1) affecting Sudo (Sudo Project), Ubuntu Linux (Canonical), Debian Linux and 15 more products.
- It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Sep 29, 2025. Public exploit code is available.
- EPSS estimates a 55% probability of exploitation in the next 30 days.
- Fixed versions are available, including libnss-sudo 1.9.15p5-3ubuntu5.24.04.1, libnss-sudo 1.9.15p5-3ubuntu5.24.10.1, libnss-sudo 1.9.16p2-1ubuntu1.1.
- Brandefense priority: patch immediately, because it is listed as exploited in the wild.
CVSS v3.1
7.8
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
55%
Higher than 99.0% of all scored CVEs
Exploited in the wild
Yes
4 catalog listings
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2025-32463 brief as a PDF
Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.
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.
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| CISA KEV | Sep 29, 2025 | Oct 20, 2025 | Not reported |
| Industry KEV feed | Sep 29, 2025 | Oct 20, 2025 | Not reported |
| CIRCL KEV | Sep 29, 2025 | Oct 20, 2025 | Not reported |
| ENISA EUVD | Sep 29, 2025 | n/a | Not reported |
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.
Affected Products
88 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| SudoSudo Project | 1.9.17, >= 1.9.14 | 1.9.17 |
| Ubuntu LinuxCanonical | 22.04, 24.04, 24.10, 25.04 | n/a |
| Debian LinuxDebian | 11.0, 12.0, 13.0 | n/a |
| LeapOpensuse | 15.6 | n/a |
| Enterprise LinuxRedhat | 10.0 | n/a |
Patched Releases
libnss-sudo
1.9.15p5-3ubuntu5.24.04.1, 1.9.15p5-3ubuntu5.24.10.1, 1.9.16p2-1ubuntu1.1
Sudo
0:1.9.15-8.p5.el10_0.2, 1.9.15-1.p5.amzn2023.0.2, 1.9.15-8.p5.el10_0.2, 1.9.15p5-150600.3.9.1, 1.9.15p5-2.1, 1.9.15p5-3.ph4, 1.9.15p5-3ubuntu5.24.04.1, 1.9.15p5-3ubuntu5.24.10.1, 1.9.15p5-5.ph5, 1.9.15p5-slfo.1.1_2.1, 1.9.16p2-1ubuntu1.1, 1.9.16p2-3, 1.9.17_p1-r0, 1.9.17-1, 1.9.17-r0, 1.9.17p1-1.1, 1.9.9-1ubuntu2.5, 1.9.17p1, 1.9.17
sudo-devel
1.9.15-1.p5.amzn2023.0.2, 1.9.15p5-150600.3.9.1, 1.9.17p1-1.1
sudo-ldap
1.9.15p5-3ubuntu5.24.04.1, 1.9.15p5-3ubuntu5.24.10.1, 1.9.16p2-1ubuntu1.1, 1.9.9-1ubuntu2.5
sudo-logsrvd
1.9.15-1.p5.amzn2023.0.2
sudo-plugin-python
1.9.15p5-150600.3.9.1, 1.9.17p1-1.1
sudo-policy-sudo-auth-self
1.9.15p5-150600.3.9.1, 1.9.17p1-1.1
sudo-policy-wheel-auth-self
1.9.15p5-150600.3.9.1, 1.9.17p1-1.1
sudo-python-plugin
1.9.15-1.p5.amzn2023.0.2, 1.9.15-8.p5.el10_0.2
sudo-test
1.9.15p5-150600.3.9.1, 1.9.17p1-1.1
system-group-sudo
1.9.15p5-150600.3.9.1, 1.9.17p1-1.1
Timeline
Publicly disclosed
Jun 30, 2025
Added to CISA KEV
Sep 29, 2025
Added to Industry KEV feed
Sep 29, 2025
Added to CIRCL KEV
Sep 29, 2025
Added to ENISA EUVD
Sep 29, 2025
Last updated
Oct 8, 2026
Weakness Type
- CWE-427 Uncontrolled Search Path Element
- CWE-829 Inclusion of Functionality from Untrusted Control Sphere
References
- advisoryRHSA-2025:11537
- advisoryhttps://access.redhat.com/security/cve/cve-2025-32463
- advisoryhttps://bugs.gentoo.org/show_bug.cgi?id=CVE-2025-32463
- advisoryhttps://explore.alas.aws.amazon.com/CVE-2025-32463.html
- advisoryhttps://github.com/CVEProject/cvelistV5/tree/main/cves/2025/32xxx/CVE-2025-32463.json
FAQ
Common Questions.
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: Sudo (Sudo Project) versions 1.9.17, >= 1.9.14; Ubuntu Linux (Canonical) versions 22.04, 24.04, 24.10, 25.04; Debian Linux versions 11.0, 12.0, 13.0, among others. The full list is in the CVE brief.
It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Sep 29, 2025.
Yes. It was added on Sep 29, 2025 with a federal remediation due date of Oct 20, 2025.
Public exploit code is available.
Fixed versions are available, including libnss-sudo 1.9.15p5-3ubuntu5.24.04.1, libnss-sudo 1.9.15p5-3ubuntu5.24.10.1, libnss-sudo 1.9.16p2-1ubuntu1.1.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.
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