CVE-2025-32463criticalunder attackCWE-829

CVE-2025-32463: critical vulnerability in Sudo

Published 30 Jun 2025 · Updated 26 Feb 2026

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100Vexday Risk Score

Patch now. It under exploitation confirmed by CISA and has a working public exploit.

ssvc Actcvss 9.3epss 56%

from disclosure to weaponsame day

Published on NVDJun 30

1st PoCNov 6

metasploitJun 30

CISA KEV+91d

What the vendors declare (VEX)

Official vendor statements in CSAF/VEX format: whether their product is affected, already fixed, or ruled out — and why. These are the vendor's assertions, not Vexday's judgment.

Red HatVEX document ↗

Fixed

2 products (33 components)

Red Hat Enterprise Linux BaseOS (v. 10) · Red Hat Enterprise Linux AppStream (v. 10)

fix ↗

Not affected

5 products (13 components) — because the vulnerable code is not present in the product

Red Hat Enterprise Linux 6 · Red Hat Enterprise Linux 7 · Red Hat Enterprise Linux 9 · Red Hat Enterprise Linux 8 · Red Hat OpenShift Container Platform 4

Action required by CISAfederal deadline: 2025-10-20

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

In short

Sudo versions before 1.9.17p1 have a critical flaw where it reads configuration files from user-controlled directories when using the --chroot option, allowing local users to trick sudo into running commands as root.

Technical detail

CWE-829 (Untrusted Search Path) vulnerability in sudo's --chroot functionality allows local privilege escalation through malicious /etc/nsswitch.conf placement in attacker-controlled directories. Exploitation requires local access and ability to control directory contents before sudo execution with --chroot; successful exploitation grants arbitrary root command execution.

Summary generated and translated by AI from the official description.

The full analysis of this CVE is available in Portuguese →

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/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Affected products

Sudo project · Sudo

public PoCs found — 158

⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.

Related CVEs — Sudo

In the same product, most dangerous first.

CVE-2025-32462LOWCVE-2025-32462EPSS 4.5%CVE-2026-35535HIGHCVE-2026-35535EPSS 0.2%

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://iototsecnews.jp/2025/07/01/linux-sudo-chroot-vulnerability-enables-hackers-to-elevate-privileges-to-root/https://security-tracker.debian.org/tracker/CVE-2025-32463 https://ubuntu.com/security/notices/USN-7604-1 https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-32463 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/