CVE-2026-53022 platform/x86: dell-wmi-sysman: bound enumeration string aggregation
A buffer overflow in the Dell WMI system management driver allows attackers to execute arbitrary code or escalate privileges via crafted firmware data.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-53022?
CVE-2026-53022 is a medium-severity memory corruption vulnerability in Linux kernel, published on 24 Jun 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official 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]
Which versions are affected by CVE-2026-53022?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2026-53022?
Apply the vendor's patch.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-53022 being exploited?
There is no known exploitation of CVE-2026-53022 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as BELL-CVE-2026-53022, DEBIAN-CVE-2026-53022, GHSA-43hp-gwh9-j233, ROOT-OS-DEBIAN-12-CVE-2026-53022, ROOT-OS-UBUNTU-2204-CVE-2026-53022, ROOT-OS-UBUNTU-2404-CVE-2026-53022 and 1 more.