PT-2025-45575 · Linux+3 · Linux Kernel+3

CVE-2025-40109

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Published

2025-10-02

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Updated

2026-08-30

CVSS v3.1

7.3

High

VectorAV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:H
Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)
Description A flaw exists in the Linux kernel's crypto/rng module. The issue involves ensuring that the set ent function is always set, as it is only provided by the drbg. This ensures proper functionality of the random number generator.
Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

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Weakness Enumeration

Related Identifiers

BDU:2026-02782
CVE-2025-40109
DLA-4379-1
DLA-4404-1
DSA-6053-1
ECHO-93B4-5342-28D2
OESA-2025-2765
OESA-2025-2766
OESA-2025-2767
OPENSUSE-SU-2025:20172-1
SUSE-SU-2025:4393-1
SUSE-SU-2025:4422-1
SUSE-SU-2025:4505-1
SUSE-SU-2025:4516-1
SUSE-SU-2025:4517-1
SUSE-SU-2025:4521-1
SUSE-SU-2026:20012-1
SUSE-SU-2026:20015-1
SUSE-SU-2026:20021-1
SUSE-SU-2026:20039-1
SUSE-SU-2026:20059-1
SUSE-SU-2026:20473-1
SUSE-SU-2026:20496-1
SUSE-SU-2026:20562-1
USN-7906-1
USN-7906-2
USN-7906-3
USN-8033-1
USN-8033-2
USN-8033-3
USN-8033-4
USN-8033-5
USN-8033-6
USN-8033-7
USN-8033-8
USN-8034-1
USN-8034-2
USN-8095-1
USN-8095-2
USN-8095-3
USN-8095-4
USN-8095-5
USN-8100-1
USN-8125-1
USN-8126-1
USN-8141-1
USN-8163-1
USN-8163-2
USN-8165-1
USN-8243-1
USN-8261-1

Affected Products

Debian
Linuxmint
Linux Kernel
Ubuntu