CVE-2026-53022: platform/x86: dell-wmi-sysman: bound enumeration string aggregation
Vulnerability summary
CVE-2026-53022 is a medium (CVSS 5.5) vulnerability in linux. EPSS estimates a 0.16% chance of exploitation in the next 30 days, higher than 5.4% of scored vulnerabilities.
Not severe (CVSS 5.5, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 49 · Related 49Timeline
- 24-06-2026PublishedVulnerability first disclosed.
Description
In the Linux kernel, the following vulnerability has been resolved: platform/x86: dell-wmi-sysman: bound enumeration string aggregation populate_enum_data() aggregates firmware-provided value-modifier and possible-value strings into fixed 512-byte struct members. The current code bounds each individual source string but then appends every string and separator with raw strcat() and no remaining-space check. Switch the aggregation loops to a bounded append helper and reject enumeration packages whose combined strings do not fit in the destination buffers. [ij: add include]
CVSS metrics
3 scores · 3 sources · 1 version- OSV · UbuntuEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
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
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeNo weakness data has been published for this record.
Affected systems
Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu154 products
- linux< 5.15.0-186.196 | < 6.8.0-136.136 | All versions (No fix recorded) | < 7.0.0-28.28
- linux-allwinner-5.19All versions (No fix recorded)
- linux-aws< 5.15.0-1112.119 | < 6.8.0-1061.64 | All versions (No fix recorded) | < 7.0.0-1009.9
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Linux2 products
- linux≥ e8a60aa7404bfef37705da5607c97737073ac38d, < 7b3dc1f764bf24eb99474a5de8173b0b43a8b071 | ≥ e8a60aa7404bfef37705da5607c97737073ac38d, < 75c738d4f27fa18a2a033de153bd40302bde6a66 | ≥ e8a60aa7404bfef37705da5607c97737073ac38d, < ba0843c1955864401295f7ba3b420afe19f2266d | ≥ e8a60aa7404bfef37705da5607c97737073ac38d, < 5a04f9a36930792f6d64e28d43609e158d09b665 | ≥ e8a60aa7404bfef37705da5607c97737073ac38d, < c5683ca4949a514fbe656c6d0d08c4c126e21db9 | ≥ e8a60aa7404bfef37705da5607c97737073ac38d, < 90b118d264845f7aaf539ac49f7c75f1f29590e2 | ≥ e8a60aa7404bfef37705da5607c97737073ac38d, < 3c34471c26abc52a37f5ad90949e2e4b8027eb14 | 5.11
- linux_kernel≥ 5.11, < 5.15.209 | ≥ 5.16, < 6.1.175 | ≥ 6.2, < 6.6.141 | ≥ 6.7, < 6.12.91 | ≥ 6.13, < 6.18.33 | ≥ 6.19, < 7.0.10
Debian1 product
- linux< 6.1.176-1 | < 6.12.94-1 | < 7.0.10-1
3 vendors · 157 products
