5.5

CVE-2026-31661: linux

CVSS: 5.5v3.1MediumAnalyzed
AliasesUBUNTU-CVE-2026-31661DEBIAN-CVE-2026-31661
Published 24-04-2026Last modified 11-05-2026
Open JSON

Vulnerability summary

CVE-2026-31661 is a medium (CVSS 5.5) vulnerability in linux. EPSS estimates a 0.16% chance of exploitation in the next 30 days, higher than 5.1% 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
0.16%
0%100%
Low · +0.05 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 41 · Related 39
MGASA-2026-0108MGASA-2026-0110OPENSUSE-SU-2026:21555-1SUSE-SU-2026:23066-1SUSE-SU-2026:23068-1SUSE-SU-2026:23193-1

Timeline

  1. 24-04-2026
    PublishedVulnerability first disclosed.
  2. 11-05-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: brcmsmac: Fix dma_free_coherent() size dma_alloc_consistent() may change the size to align it. The new size is saved in alloced. Change the free size to match the allocation size.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.16%

Chance of exploitation in the next 30 days

Percentile

5%

Versus all other CVEs

30-day change

+0.05 pp

From 0.11% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.16%

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

Ubuntu157 products
  • linuxAll versions (No fix recorded) | < 5.15.0-186.196 | < 6.8.0-136.136
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 5.15.0-1112.119 | < 6.8.0-1061.64
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ 5b435de0d786869c95d1962121af0d7df2542009, < f449676bab54fea1440775c8c915dadb323fe015 | ≥ 5b435de0d786869c95d1962121af0d7df2542009, < 3c204a0fd079fa7a867151a47d830ad1c2db5177 | ≥ 5b435de0d786869c95d1962121af0d7df2542009, < 0f87777b74bcce29b966ec42d9aa8f9edd9b1667 | ≥ 5b435de0d786869c95d1962121af0d7df2542009, < 4bf41c2731a0549e21f66180ff780b1e036639ab | ≥ 5b435de0d786869c95d1962121af0d7df2542009, < 77263f053963dea9f3962505ac0c768853d7dc59 | ≥ 5b435de0d786869c95d1962121af0d7df2542009, < b27fa888e4a426a3bcf6f6ab24701d888d9bf5aa | ≥ 5b435de0d786869c95d1962121af0d7df2542009, < 01f1330d3d1bee07e0c42d40cc48b7be8b6dad84 | ≥ 5b435de0d786869c95d1962121af0d7df2542009, < 12cd7632757a54ce586e36040210b1a738a0fc53 | 3.2
  • linux_kernel≥ 3.2.1, < 5.10.253 | ≥ 5.11, < 5.15.203 | ≥ 5.16, < 6.1.169 | ≥ 6.2, < 6.6.135 | ≥ 6.7, < 6.12.82 | ≥ 6.13, < 6.18.23 | ≥ 6.19, < 6.19.13 | 3.2 | 7.0:rc1 | 7.0:rc2 | 7.0:rc3 | 7.0:rc4 | 7.0:rc5 | 7.0:rc6 | 7.0:rc7
Debian1 product
  • linux< 6.1.170-1 | < 6.12.85-1 | < 6.19.13-1

3 vendors · 160 products

References

40 links
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