8.8

CVE-2026-74629: linux

CVSS: 8.8v3.1HighReceived
AliasesUBUNTU-CVE-2026-74629DEBIAN-CVE-2026-74629
Published 22-08-2026Last modified 16-10-2026
Open JSON

Vulnerability summary

CVE-2026-74629 is a high (CVSS 8.8) vulnerability in linux. EPSS estimates a 0.38% chance of exploitation in the next 30 days, higher than 29.9% of scored vulnerabilities.

Overall risk
35/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.8/10
010
High · v3.1 (CVE.org)
EPSS score
0.38%
0%100%
Low · +0.14 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 1
MGASA-2026-0506

Timeline

  1. 22-08-2026
    PublishedVulnerability first disclosed.
  2. 16-10-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: net/dibs: Correct freeing of dmb_clientid_arr A dibs device interrupt handler can be active after dibs_dev_del() and may still access dmb_clientid_arr. (UAF) In case of a failure in dibs_dev_add() being called by dibs_lo_dev_probe() dmb_clientid_arr is freed twice (double free). Free dmb_clientid_arr in dibs_dev_release() after last reference is gone. Note that allocating in dibs_dev_add() instead of dibs_dev_alloc() is ok for now, because no dmbs can be registered before dibs_dev_add().

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.38%

Chance of exploitation in the next 30 days

Percentile

30%

Versus all other CVEs

30-day change

+0.14 pp

From 0.24% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.38%

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

Ubuntu117 products
  • linuxAll versions (No fix recorded)
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded)
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Debian1 product
  • linux< 7.1.9-1
Linux1 product
  • linux≥ cc21191b584c6f7836b0f10774f8278b7cbfba10, < ece6426b61241e9bfb41aa131f235168f55229b1 | ≥ cc21191b584c6f7836b0f10774f8278b7cbfba10, < 7a1df20a8d2cc89e3a442b6e0b43b1cacde8d403 | ≥ cc21191b584c6f7836b0f10774f8278b7cbfba10, < 9e6869be49064915edb6c8776b27c376cfdb0df5 | 6.18

3 vendors · 119 products

References

6 links