Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2026-53614— util-linux LIBMOUNT_FORCE_MOUNT2 allows nosuid and noexec bypass

Quick assessment

Affected
util-linux util-linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

util-linux is a random collection of Linux utilities. In util-linux 2.39.1 through 2.41.4 and 2.42 through 2.42.1, the SUID utility reads the attacker-controlled environment variable with , allowing a local low-privileged user to force the non-atomic legacy bi

CVSS 7.0 · High

Affected Version Matrix 2

VendorProduct Version RangeStatus
util-linux util-linux >= 2.39.1, < 2.41.5 affected
>= 2.42, < 2.42.2 affected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-53614

Vulnerability Information

Shenlong is analyzing...

Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
util-linux LIBMOUNT_FORCE_MOUNT2 allows nosuid and noexec bypass
Source: CVE Program / CVE List V5
Vulnerability Description
util-linux is a random collection of Linux utilities. In util-linux 2.39.1 through 2.41.4 and 2.42 through 2.42.1, the SUID `mount` utility reads the attacker-controlled `LIBMOUNT_FORCE_MOUNT2` environment variable with `getenv()`, allowing a local low-privileged user to force the non-atomic legacy bind-mount path. With an `/etc/fstab` bind mount authorized by `user` or `users` and protected by `nosuid`, `noexec`, or `nodev`, an attacker can race the window between the initial bind mount and the remount that applies those security flags and execute a SUID program from the temporarily unprotected mount, potentially gaining root privileges. This issue is fixed in 2.41.5 and 2.42.2.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
特权管理不恰当
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
util-linux util-linux >= 2.39.1, < 2.41.5 -

II. Public POCs for CVE-2026-53614

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-53614

请登录查看更多情报信息。

Patches & Fixes for CVE-2026-53614 (5)

Other References for CVE-2026-53614 (3)

Same Patch Batch · util-linux · 2026-10-14 · 4 CVEs total

CVE-2026-53615 8.0 HIGH util-linux libblkid DOS extended-partition overflow produces invalid partition metadata
CVE-2026-53613 7.0 HIGH util-linux mount target TOCTOU allows local privilege escalation
CVE-2026-53612 7.0 HIGH util-linux mount hook_owner TOCTOU allows local privilege escalation

IV. Related Vulnerabilities

Same product: util-linux
Same vendor: util-linux
Same weakness: CWE-269

V. Comments for CVE-2026-53614

No comments yet

Leave a comment