5.5

CVE-2026-31522: linux

CVSS: 5.5v3.1MediumAnalyzed
AliasesUBUNTU-CVE-2026-31522DEBIAN-CVE-2026-31522
Published 22-04-2026Last modified 23-05-2026
Open JSON

Vulnerability summary

CVE-2026-31522 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% 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 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. 22-04-2026
    PublishedVulnerability first disclosed.
  2. 23-05-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: HID: magicmouse: avoid memory leak in magicmouse_report_fixup() The magicmouse_report_fixup() function was returning a newly kmemdup()-allocated buffer, but never freeing it. The caller of report_fixup() does not take ownership of the returned pointer, but it *is* permitted to return a sub-portion of the input rdesc, whose lifetime is managed by the caller.

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

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≥ e6ad399596bd234be4722022146e33e15c7e424d, < 579c4c9857acdc8380fa99803f355f878bd766cb | ≥ 0b91b4e4dae63cd43871fc2012370b86ee588f91, < d84c21aabaab517b9aaf9bc1d785922cb9db2f31 | ≥ 0b91b4e4dae63cd43871fc2012370b86ee588f91, < 7edfe4346b052b708645d0acc0f186425766b785 | ≥ 0b91b4e4dae63cd43871fc2012370b86ee588f91, < 79e5dcc95d9abed6f8203cfd529f4ec71f0e505d | ≥ 0b91b4e4dae63cd43871fc2012370b86ee588f91, < 136f605e246b4bfe7ac2259471d1ff814aed0084 | ≥ 0b91b4e4dae63cd43871fc2012370b86ee588f91, < fa95b0146358b49f9858139b67314591fd5871b0 | ≥ 0b91b4e4dae63cd43871fc2012370b86ee588f91, < 91e8c6e601bdc1ccdf886479b6513c01c7e51c2c | c394bd1bc8537e61593b6b6799e01495c7cf9008 | ≥ 5.15.17, < 5.15.203 | ≥ 5.16.3, < 5.17 | 5.17
  • linux_kernel≥ 5.15.17, < 5.15.203 | ≥ 5.16.3, < 5.17 | ≥ 5.17, < 6.1.168 | ≥ 6.2, < 6.6.131 | ≥ 6.7, < 6.12.80 | ≥ 6.13, < 6.18.21 | ≥ 6.19, < 6.19.11 | 7.0:rc1 | 7.0:rc2
Debian1 product
  • linux< 6.1.170-1 | < 6.12.85-1 | < 6.19.11-1

3 vendors · 160 products

References

39 links
Show all 39 references