CVE-2025-40010: afs: Fix potential null pointer dereference in afs_put_server

Deferred
AliasesUBUNTU-CVE-2025-40010DEBIAN-CVE-2025-40010
Published 20-10-2025Last modified 11-05-2026

Vulnerability summary

CVE-2025-40010 is a vulnerability in linux with no CVSS score yet. EPSS estimates a 0.24% chance of exploitation in the next 30 days, higher than 15.6% of scored vulnerabilities.

Priority
Insufficient evidence

No CVSS vector published; no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
Not scored
010
No CVSS score recorded
EPSS score
0.24%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 24 · Related 20
DLA-4379-1DSA-6053-1MGASA-2025-0309MGASA-2025-0310SUSE-SU-2025:21040-1SUSE-SU-2025:21052-1

Timeline

  1. 20-10-2025
    PublishedVulnerability first disclosed.
  2. 11-05-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: afs: Fix potential null pointer dereference in afs_put_server afs_put_server() accessed server->debug_id before the NULL check, which could lead to a null pointer dereference. Move the debug_id assignment, ensuring we never dereference a NULL server pointer.

CVSS metrics

Risk metrics not yet published.

EPSS trend

Probability

0.24%

Chance of exploitation in the next 30 days

Percentile

16%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.25% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Version check

Known conditions: not stated in public data.

Ubuntu121 products
  • linux< 6.8.0-106.106 | < 6.17.0-6.6
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws< 6.8.0-1050.53 | < 6.17.0-1003.3
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Debian1 product
  • linux< 6.1.158-1 | < 6.12.57-1 | < 6.16.10-1
Linux1 product
  • linux≥ 2757a4dc184997c66ef1de32636f73b9f21aac14, < 7b8381f3c405b864a814d747e526e078c3ef4bc2 | ≥ 2757a4dc184997c66ef1de32636f73b9f21aac14, < cab278cead49a547ac84c3e185f446f381303eae | ≥ 2757a4dc184997c66ef1de32636f73b9f21aac14, < a13dbc5e20c7284b82afe6f08debdecf51d2ca04 | ≥ 2757a4dc184997c66ef1de32636f73b9f21aac14, < 41782c44bb8431c43043129ae42f2ba614938479 | ≥ 2757a4dc184997c66ef1de32636f73b9f21aac14, < 9158c6bb245113d4966df9b2ba602197a379412e | 6.0

3 vendors · 123 products

References

19 links
Show all 19 references