---
title: "CVE-2025-32463: Sudo Inclusion of Functionality from Untrusted Control Sphere Vulnerability"
url: https://erroneo.us/security/cve/CVE-2025-32463/
description: "CVE-2025-32463 (Sudo Sudo): Exploited in the wild (CISA KEV). Sudo before 1.9.17p1 allows local users to obtain root access because /etc/nsswitch.conf from…"
type: vulnerability-record
section: "Security Digest"
date_published: 2025-06-30
date_modified: 2026-10-21
publisher: erroneo.us
author: erroneo.us Security Desk
cve: "CVE-2025-32463"
kev: true
cvss: 9.3
epss: 0.55498
license: All rights reserved. Quote with attribution and a link.
---

# CVE-2025-32463: Sudo Inclusion of Functionality from Untrusted Control Sphere Vulnerability

**Signal:** Exploited: patch now if you run it. CISA has confirmed exploitation in the wild. (Computed from CISA KEV, EPSS and CVSS; not an editorial verdict.)

## Should you act?

- Yes, if you run Sudo Sudo. CISA added this CVE to its Known Exploited Vulnerabilities catalog on 2025-09-29, which means there is reliable evidence of exploitation in the wild. US federal agencies must remediate by 2025-10-20 ; treat that as the outer limit, not the target.
- EPSS 55.5% , percentile 99: FIRST’s model estimates a 55.5% chance of exploitation activity in the next 30 days, higher than 99% of all scored CVEs (very high). EPSS is a probability, not a verdict.
- Needs local access needed. Lower urgency for most teams unless an attacker could already run code on the machine.
- Editorial verdict: Check exposure. sudo --chroot Local Root Escalation (CVE-2025-32463) — Distros patched this in mid-2025 and it is now known-exploited; any multi-user or shared Linux host still on sudo 1.9.14-1.9.17 without the vendor fix hands root to every local account.

## 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.

## Affected products (CVE record)

- Sudo project Sudo: 1.9.14 < 1.9.17p1

## Severity

- mitre CVSS 3.1: 9.3 `CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H`

## Exploitation

- CISA KEV: added 2025-09-29; federal due date 2025-10-20. Known ransomware use: Unknown.
- CISA 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.
- CISA SSVC assessment: exploitation active , automatable no , technical impact total .
- FIRST EPSS (model of 2026-10-21): 55.50% probability of exploitation activity in the next 30 days; percentile 99.

## Sources

- [Listed in CISA KEV notes (sudo.ws)](https://www.sudo.ws/security/advisories/chroot_bug/)
- [CVE.org record CVE-2025-32463](https://www.cve.org/CVERecord?id=CVE-2025-32463)
- [NVD entry CVE-2025-32463](https://nvd.nist.gov/vuln/detail/CVE-2025-32463)
- [CISA Known Exploited Vulnerabilities catalog entry](https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-32463)
- [sudo.ws](https://www.sudo.ws/security/advisories/)
- [sudo.ws](https://www.sudo.ws/releases/changelog/)
- [stratascale.com](https://www.stratascale.com/vulnerability-alert-CVE-2025-32463-sudo-chroot)
- [openwall.com](https://www.openwall.com/lists/oss-security/2025/06/30/3)
- [access.redhat.com](https://access.redhat.com/security/cve/cve-2025-32463)
- [ubuntu.com](https://ubuntu.com/security/notices/USN-7604-1)
- [security-tracker.debian.org](https://security-tracker.debian.org/tracker/CVE-2025-32463)
- [explore.alas.aws.amazon.com](https://explore.alas.aws.amazon.com/CVE-2025-32463.html)
- [bugs.gentoo.org](https://bugs.gentoo.org/show_bug.cgi?id=CVE-2025-32463)
- [suse.com](https://www.suse.com/support/update/announcement/2025/suse-su-202502177-1/)
- [suse.com](https://www.suse.com/security/cve/CVE-2025-32463.html)
- [secpod.com](https://www.secpod.com/blog/sudo-lpe-vulnerabilities-resolved-what-you-need-to-know-about-cve-2025-32462-and-cve-2025-32463/)
- [vicarius.io](https://www.vicarius.io/vsociety/posts/cve-2025-32463-detect-sudo-vulnerability)
- [vicarius.io](https://www.vicarius.io/vsociety/posts/cve-2025-32463-mitigate-sudo-vulnerability)
- [iototsecnews.jp](https://iototsecnews.jp/2025/07/01/linux-sudo-chroot-vulnerability-enables-hackers-to-elevate-privileges-to-root/)

---
Source page: https://erroneo.us/security/cve/CVE-2025-32463/ · Security Digest: https://erroneo.us/security/ · More: https://erroneo.us/llms.txt