CVE-2025-38077 platform/x86: dell-wmi-sysman: Avoid buffer overflow in current_password_store()
A buffer overflow in the Dell WMI sysman driver allows local attackers to execute arbitrary code or escalate privileges via crafted input.
- 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-2025-38077?
CVE-2025-38077 is a high-severity memory corruption vulnerability in Debian Debian Linux, published on 18 Jun 2025. 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: Avoid buffer overflow in current_password_store()
If the 'buf' array received from the user contains an empty string, the 'length' variable will be zero. Accessing the 'buf' array element with index 'length - 1' will result in a buffer overflow.
Add a check for an empty string.
Found by Linux Verification Center (linuxtesting.org) with SVACE.
Weakness: CWE-787
Which versions are affected by CVE-2025-38077?
It affects 2 products.
Products include Debian Debian Linux, Linux kernel.
How do I fix CVE-2025-38077?
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-2025-38077 being exploited?
There is no known exploitation of CVE-2025-38077 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as AZL-63998, BELL-CVE-2025-38077, DEBIAN-CVE-2025-38077, GHSA-6xx4-fvpc-r9qf, ROOT-OS-DEBIAN-12-CVE-2025-38077, ROOT-OS-UBUNTU-2204-CVE-2025-38077 and 2 more.