CVE-2025-38077
CVE-2025-38077 is a high-severity vulnerability in Linux Linux Kernel with a CVSS 3.x base score of 7.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-787.
Key facts
- Severity: High (CVSS 3.x base score 7.8)
- EPSS exploit prediction: 0% (8th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2025-18576
- Weakness: CWE-787
- Affected product: Linux Linux Kernel
- Published:
- Last modified:
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.
Frequently asked questions
- What is CVE-2025-38077?
- 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.
- How severe is CVE-2025-38077?
- CVE-2025-38077 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2025-38077 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (8th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2025-38077?
- CVE-2025-38077 primarily affects Linux Linux Kernel. In total, 9 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2025-38077?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- Does CVE-2025-38077 have an EU (EUVD) identifier?
- Yes. CVE-2025-38077 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-18576.
- When was CVE-2025-38077 published?
- CVE-2025-38077 was published on 2025-06-18 and last updated on 2026-06-17.
References
- https://git.kernel.org/stable/c/4e89a4077490f52cde652d17e32519b666abf3a6
- https://git.kernel.org/stable/c/60bd13f8c4b3de2c910ae1cdbef85b9bbc9685f5
- https://git.kernel.org/stable/c/8594a123cfa23d708582dc6fb36da34479ef8a5b
- https://git.kernel.org/stable/c/97066373ffd55bd9af0b512ff3dd1f647620a3dc
- https://git.kernel.org/stable/c/f86465626917df3b8bdd2756ec0cc9d179c5af0f
- https://git.kernel.org/stable/c/fb7cde625872709b8cedad9b241e0ec3d82fa7d3
- https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html
Affected products (9)
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:6.15:rc1:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:6.15:rc2:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:6.15:rc3:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:6.15:rc4:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:6.15:rc5:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:6.15:rc6:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:6.15:rc7:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
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