5.5

CVE-2026-31542: linux

CVSS: 5.5v3.1MediumAnalyzed
AliasesUBUNTU-CVE-2026-31542DEBIAN-CVE-2026-31542
Published 24-04-2026Last modified 11-05-2026
Open JSON

Vulnerability summary

CVE-2026-31542 is a medium (CVSS 5.5) vulnerability in linux. EPSS estimates a 0.16% chance of exploitation in the next 30 days, higher than 4.9% 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 · +0.04 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 29 · Related 29
OPENSUSE-SU-2026:21555-1SUSE-SU-2026:23066-1SUSE-SU-2026:23068-1SUSE-SU-2026:23193-1SUSE-SU-2026:23194-1SUSE-SU-2026:23221-1

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: x86/platform/uv: Handle deconfigured sockets When a socket is deconfigured, it's mapped to SOCK_EMPTY (0xffff). This causes a panic while allocating UV hub info structures. Fix this by using NUMA_NO_NODE, allowing UV hub info structures to be allocated on valid nodes.

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

+0.04 pp

From 0.12% on 20-09-2026

20-09-202620-10-2026
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

Ubuntu130 products
  • linux< 6.8.0-136.136 | All versions (No fix recorded)
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws< 6.8.0-1061.64 | All versions (No fix recorded)
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ 8a50c58519271dd24ba760bb282875f6ad66ee71, < c51957601d32c0d195bce0b9345dfe93ef5728cc | ≥ 8a50c58519271dd24ba760bb282875f6ad66ee71, < 9956d4892e78812246336c7ea51f5aa62018049e | ≥ 8a50c58519271dd24ba760bb282875f6ad66ee71, < 79f0faf81d3bbbe5f07bf6892450d3740a1b290d | ≥ 8a50c58519271dd24ba760bb282875f6ad66ee71, < c1cf2218d2fa40a49921a7460981e5faab26f04e | ≥ 8a50c58519271dd24ba760bb282875f6ad66ee71, < 1f6aa5bbf1d0f81a8a2aafc16136e7dd9a609ff3 | 6.5
  • linux_kernel≥ 6.5, < 6.6.130 | ≥ 6.7, < 6.12.78 | ≥ 6.13, < 6.18.20 | ≥ 6.19, < 6.19.10 | 7.0:rc1 | 7.0:rc2 | 7.0:rc3 | 7.0:rc4
Debian1 product
  • linux< 6.12.85-1 | < 6.19.10-1

3 vendors · 133 products

References

23 links
Show all 23 references