01 Record

CVE-2025-40215

xfrm: delete x->tunnel as we delete x

HighPUBLISHEDCNA: Linux

CNA base score7.8 CVSS v3.xCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

View raw JSON

02 Description

xfrm: delete x->tunnel as we delete x

03 Exploitation and scoring

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 ImpactpartialSuccessful exploitation gives limited 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

0.14% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 3.6% 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

Deferred. NVD last modified this record on 2026-10-19.

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.

04 Metadata

Published

2025-12-04 12:38Z10 MO AGO

Last updated

2026-08-05 12:08Z2 MO AGO

Reserved

2025-04-16

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-772Missing Release of Resource after Effective LifetimeBase

Data version

5.2

Document digest

ba452bc001e32b3d73323924e0abe50a6914f1dd54ad8ddc1c125df55d458d3b

05 Affected products

VendorProductVersionsPlatforms

LinuxLinux9d4139c76905833afcb77fe8ccc17f302a0eb9ab to < 1b28a7fae0128fa140a7dccd995182ff6cd1c67b, 9d4139c76905833afcb77fe8ccc17f302a0eb9ab to < 4b2c17d0f9be8b58bb30468bc81a4b61c985b04e, 9d4139c76905833afcb77fe8ccc17f302a0eb9ab to < 0da961fa46da1b37ef868d9b603bd202136f8f8e, 9d4139c76905833afcb77fe8ccc17f302a0eb9ab to < d0e0d1097118461463b76562c7ebaabaa5b90b13, 9d4139c76905833afcb77fe8ccc17f302a0eb9ab to < dc3636912d41770466543623cb76e7b88fdb42c7, 9d4139c76905833afcb77fe8ccc17f302a0eb9ab to < b441cf3f8c4b8576639d20c8eb4aa32917602ecd, 2.6.29—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/1b28a7fae0128fa140a7dccd995182ff6cd1c67b
git.kernel.orghttps://git.kernel.org/stable/c/4b2c17d0f9be8b58bb30468bc81a4b61c985b04e
git.kernel.orghttps://git.kernel.org/stable/c/0da961fa46da1b37ef868d9b603bd202136f8f8e
git.kernel.orghttps://git.kernel.org/stable/c/d0e0d1097118461463b76562c7ebaabaa5b90b13
git.kernel.orghttps://git.kernel.org/stable/c/dc3636912d41770466543623cb76e7b88fdb42c7
git.kernel.orghttps://git.kernel.org/stable/c/b441cf3f8c4b8576639d20c8eb4aa32917602ecd

07 Fixed in

Debian 12

linux
Fixed in 6.1.162-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 13

linux
Fixed in 6.12.63-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

linux
Fixed in 6.16.3-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.