5.5

CVE-2024-40921: linux

CVSS: 5.5v3.1MediumModified
AliasesUBUNTU-CVE-2024-40921DEBIAN-CVE-2024-40921
Published 12-07-2024Last modified 23-05-2026
Open JSON

Vulnerability summary

CVE-2024-40921 is a medium (CVSS 5.5) vulnerability in linux. EPSS estimates a 0.29% chance of exploitation in the next 30 days, higher than 20.2% of scored vulnerabilities.

Overall risk
22/100
0100
Low · default modelHow is this calculated?
CVSS score
5.5/10
010
Medium · v3.1 (NVD)
EPSS score
0.29%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 20 · Related 18
DLA-4008-1DSA-5731-1SUSE-SU-2024:3194-1SUSE-SU-2024:3195-1SUSE-SU-2024:3383-1SUSE-SU-2025:0255-1

Timeline

  1. 12-07-2024
    PublishedVulnerability first disclosed.
  2. 23-05-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: net: bridge: mst: pass vlan group directly to br_mst_vlan_set_state Pass the already obtained vlan group pointer to br_mst_vlan_set_state() instead of dereferencing it again. Each caller has already correctly dereferenced it for their context. This change is required for the following suspicious RCU dereference fix. No functional changes intended.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.29%

Chance of exploitation in the next 30 days

Percentile

20%

Versus all other CVEs

30-day change

0.00 pp

From 0.29% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.29%

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

Ubuntu84 products
  • linux< 6.8.0-44.44
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws< 6.8.0-1015.16
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ 8ca9a750fc711911ef616ceb627d07357b04545e, < 09f4337c27f5bdeb8646a6db91488cc2f7d537ff | ≥ 4488617e5e995a09abe4d81add5fb165674edb59, < a6cc9e9a651b9861efa068c164ee62dfba68c6ca | ≥ e43dd2b1ec746e105b7db5f9ad6ef14685a615a4, < d2dc02775fc0c4eacaee833a0637e5958884a8e5 | ≥ 3a7c1661ae1383364cd6092d851f5e5da64d476b, < 36c92936e868601fa1f43da6758cf55805043509 | a2b01e65d9ba8af2bb086d3b7288ca53a07249ac | ≥ 6.8.12, < 6.9 | ≥ 6.1.93, < 6.1.95 | ≥ 6.6.33, < 6.6.35 | ≥ 6.9.3, < 6.9.6
  • linux_kernel≥ 6.1.93, < 6.1.95 | ≥ 6.6.33, < 6.6.35 | ≥ 6.8.12, < 6.9 | ≥ 6.9.3, < 6.9.6 | 6.10:rc1 | 6.10:rc2 | 6.10:rc3
Debian1 product
  • linux< 6.1.99-1 | < 6.9.7-1

3 vendors · 87 products

References

16 links
Show all 16 references