7.8

CVE-2025-40202: linux

CVSS: 7.8v3.1HighDeferred
AliasesUBUNTU-CVE-2025-40202DEBIAN-CVE-2025-40202
Published 12-11-2025Last modified 05-08-2026
Open JSON

Vulnerability summary

CVE-2025-40202 is a high (CVSS 7.8) vulnerability in linux. EPSS estimates a 0.15% chance of exploitation in the next 30 days, higher than 3.7% of scored vulnerabilities.

Overall risk
31/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.8/10
010
High · v3.1 (CVE.org)
EPSS score
0.15%
0%100%
Low · +0.01 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 18 · Related 17
DLA-4379-1OPENSUSE-SU-2025:20172-1SUSE-SU-2026:0447-1SUSE-SU-2026:0471-1SUSE-SU-2026:0472-1SUSE-SU-2026:0587-1

Timeline

  1. 12-11-2025
    PublishedVulnerability first disclosed.
  2. 05-08-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: ipmi: Rework user message limit handling The limit on the number of user messages had a number of issues, improper counting in some cases and a use after free. Restructure how this is all done to handle more in the receive message allocation routine, so all refcouting and user message limit counts are done in that routine. It's a lot cleaner and safer.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.15%

Chance of exploitation in the next 30 days

Percentile

4%

Versus all other CVEs

30-day change

+0.01 pp

From 0.14% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.15%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Ubuntu127 products
  • linux< 6.8.0-106.106 | < 6.17.0-14.14
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws< 6.8.0-1050.53 | < 6.17.0-1007.7
  • 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 | < 6.17.6-1
Linux1 product
  • linux≥ 8e76741c3d8b20dfa2d6c30fa10ff927cfd93d82, < f63723ca7d7623f9dae1990973cd158671f03c56 | ≥ 8e76741c3d8b20dfa2d6c30fa10ff927cfd93d82, < 348121b29594d42d1635648fd3ed31dfa25351d5 | ≥ 8e76741c3d8b20dfa2d6c30fa10ff927cfd93d82, < 53d6e403affbf6df2c859a0ea00ccfc1e72090ca | ≥ 8e76741c3d8b20dfa2d6c30fa10ff927cfd93d82, < 0ed73be9a2547ffb9b5c1d879ad9bfab73d920b5 | ≥ 8e76741c3d8b20dfa2d6c30fa10ff927cfd93d82, < b52da4054ee0bf9ecb44996f2c83236ff50b3812 | 5.19

3 vendors · 129 products

References

14 links
Show all 14 references