5.5

CVE-2022-50521: platform/x86: mxm-wmi: fix memleak in mxm_wmi_call_mx[ds|mx]()

Analyzed
AliasesUBUNTU-CVE-2022-50521DEBIAN-CVE-2022-50521
Published 07-10-2025Last modified 11-05-2026

Vulnerability summary

CVE-2022-50521 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.

Priority
Routine

Not severe (CVSS 5.5, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
5.5/10
010
Medium · v3.1 (NVD)
EPSS score
0.16%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 4 · Related 4
SUSE-SU-2025:4111-1SUSE-SU-2025:4139-1SUSE-SU-2025:4149-1SUSE-SU-2025:4320-1

Timeline

  1. 07-10-2025
    PublishedVulnerability first disclosed.
  2. 11-05-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: platform/x86: mxm-wmi: fix memleak in mxm_wmi_call_mx[ds|mx]() The ACPI buffer memory (out.pointer) returned by wmi_evaluate_method() is not freed after the call, so it leads to memory leak. The method results in ACPI buffer is not used, so just pass NULL to wmi_evaluate_method() which fixes the memory leak.

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

No change 0.00 pp

From 0.16% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu120 products
  • linuxAll versions (No fix recorded) | < 4.15.0-208.220 | < 5.4.0-144.161 | < 5.15.0-69.76
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 4.15.0-1153.166 | < 5.4.0-1097.105 | < 5.15.0-1033.37
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ 99b38b4acc0d7dbbab443273577cff60080fcfad, < 50ac517d6f5348b276f1f663799cf85dce521518 | ≥ 99b38b4acc0d7dbbab443273577cff60080fcfad, < 5b0f81b0808235967868e01336c976e840217108 | ≥ 99b38b4acc0d7dbbab443273577cff60080fcfad, < 14bb4bde3b7b2584734b13747b345caeeb41bea3 | ≥ 99b38b4acc0d7dbbab443273577cff60080fcfad, < 17cd8c46cbec4e6ad593fb9159928b8e7608c11a | ≥ 99b38b4acc0d7dbbab443273577cff60080fcfad, < 3cf81501356c9e898ad94b2369ffc805f83f7d7b | ≥ 99b38b4acc0d7dbbab443273577cff60080fcfad, < 379e7794c5e7485193d25d73614fbbd1e1387f6f | ≥ 99b38b4acc0d7dbbab443273577cff60080fcfad, < 87426ce3bd57ad414b6e2436434ef8128986a9a5 | ≥ 99b38b4acc0d7dbbab443273577cff60080fcfad, < 727cc0147f5066e359aca65cc6cc5e6d64cc15d8 | 3.0
  • linux_kernel≥ 3.0, < 4.14.303 | ≥ 4.15, < 4.19.270 | ≥ 4.20, < 5.4.229 | ≥ 5.5, < 5.10.163 | ≥ 5.11, < 5.15.86 | ≥ 5.16, < 6.0.16 | ≥ 6.1, < 6.1.2
Debian1 product
  • linux< 6.1.4-1

3 vendors · 123 products

References

12 links
Show all 12 references