CVE-2025-21727

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

• ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.22% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 12.6% of scored records. A rank, not a probability.

NVD base score

7.8 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2025-02-27 02:07Z1 YR AGO

Last updated

2026-08-05 11:54Z1 MO AGO

Reserved

2024-12-29

Assigning CNA

Linux

Record state

PUBLISHED

Severity

High (CVSS 7.8)

CNA CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weaknesses

• CWE-416Use After FreeVariant
• CWE-820Missing SynchronizationBase

Data version

5.2

Document digest

6972b9b5835a5f09520a34175575c8f4df6ae9266c2104f7edf47876057cecbb

• git.kernel.orghttps://git.kernel.org/stable/c/f78170bee51469734b1a306a74fc5f777bb22ba6
• git.kernel.orghttps://git.kernel.org/stable/c/f3e0b9f790f8e8065d59e67b565a83154d9f3079
• git.kernel.orghttps://git.kernel.org/stable/c/0ae2f332cfd2d74cf3ce344ec9938cf3e29c3ccd
• git.kernel.orghttps://git.kernel.org/stable/c/bbccae982e9fa1d7abcb23a5ec81cb0ec883f7de
• git.kernel.orghttps://git.kernel.org/stable/c/573ac9c70bf7885dc85d82fa44550581bfc3b738
• git.kernel.orghttps://git.kernel.org/stable/c/80231f069240d52e98b6a317456c67b2eafd0781
• git.kernel.orghttps://git.kernel.org/stable/c/e01780ea4661172734118d2a5f41bc9720765668
• lists.debian.orghttps://lists.debian.org/debian-lts-announce/2025/05/msg00030.html
• lists.debian.orghttps://lists.debian.org/debian-lts-announce/2025/03/msg00028.html
• cert-portal.siemens.comhttps://cert-portal.siemens.com/productcert/html/ssa-265688.html