PoC Index85,079 CVEs with PoCs

CVE-2025-6019

Libblockdev: lpe from allow_active to root in libblockdev via udisks

HIGH 7.0EPSS 0.5%

A Local Privilege Escalation (LPE) vulnerability was found in libblockdev. Generally, the "allow_active" setting in Polkit permits a physically present user to take certain actions based on the session type. Due to the way libblockdev interacts with the udisks daemon, an "allow_active" user on a system may be able escalate to full root privileges on the target host. Normally, udisks mounts user-provided filesystem images with security flags like nosuid and nodev to prevent privilege escalation. However, a local attacker can create a specially crafted XFS image containing a SUID-root shell, then trick udisks into resizing it. This mounts their malicious filesystem with root privileges, allowing them to execute their SUID-root shell and gain complete control of the system.

Affected
Red Hat · libblockdev · Red Hat Enterprise Linux 10 · Red Hat Enterprise Linux 7 Extended Lifecycle Support · Red Hat Enterprise Linux 8 · Red Hat Enterprise Linux 8.2 Advanced Update Support · Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support
CVSS v3.1 REDHAT
7.0 HIGHCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS
0.47% chance of exploitation in the next 30 days, 39th percentile
Published
2025-06-19
Updated
2026-06-30

Proof-of-concept exploits (24)

References

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