CVE-2026-46197 (CVSS 7.8)

Description

In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: validate SVM ioctl nattr against buffer size Validate nattr field against the buffer size, preventing out-of-bounds buffer access via user-controlled attribute count. (cherry picked from commit 5eca8bfdfa456c3304ca77523718fe24254c172f)

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CVSS v3.1 Score

7.8

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS — Exploit Prediction

0.0014

Probability of exploitation

0.04%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

References

Other References

https://git.kernel.org/stable/c/045e0ff208f0838a246c10204105126611b267a1 https://git.kernel.org/stable/c/6abd3a4417cb73a7d0db7e25bf11fae1074bdba3 https://git.kernel.org/stable/c/91c6dc5a41695d02dfc6299f106ac38a6c493e52 https://git.kernel.org/stable/c/ccd060b5c7cc75ae7e211c250b97c5b6272e7efc https://git.kernel.org/stable/c/daa8bc5f83814b55b71d2b5b3a090d57a5219c21 https://git.kernel.org/stable/c/db9530a9873a7c85d2266a922589ebcf427fa631 https://git.kernel.org/stable/c/fb07a0c9c8419164812e07274947f11b1d92dd61

Frequently Asked Questions

What is CVE-2026-46197? +

In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: validate SVM ioctl nattr against buffer size Validate nattr field against the buffer size, preventing out-of-bounds buffer access via user-controlled attribute count. (cherry picked from commit 5eca8bfdfa456c3304ca77523718fe24254c172f) It has a CVSS v3.1 base score of 7.8 (HIGH).

How severe is CVE-2026-46197? +

CVE-2026-46197 has a CVSS v3.1 score of 7.8 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching. The EPSS score is 0.0014, placing it in the 0th percentile for exploitation probability.

How do I check if I'm vulnerable to CVE-2026-46197? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

CVE-2026-46197