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Vulnerability record · CVE-2020-36766 · published 18 September 2023

CVE-2020-36766: Linux kernel vulnerability

Linux · Linux Kernel

An issue was discovered in the Linux kernel before 5.8.6. drivers/media/cec/core/cec-api.c leaks one byte of kernel memory on specific hardware to unprivileged users, because of directly assigning log_addrs with a hole in the struct.

3.3 CVSS 3.1 Low EPSS 0.24% · top 86.4%
3.3CVSS 3.1 base score
0.24%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References
17 Jun 2026Last modified by NVD

Description

An issue was discovered in the Linux kernel before 5.8.6. drivers/media/cec/core/cec-api.c leaks one byte of kernel memory on specific hardware to unprivileged users, because of directly assigning log_addrs with a hole in the struct.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.8.6 Release Notes
https://github.com/torvalds/linux/commit/6c42227c3467549ddc65efe99c869021d2f4a570 Patch
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.8.6 Release Notes
https://github.com/torvalds/linux/commit/6c42227c3467549ddc65efe99c869021d2f4a570 Patch

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Source: NIST National Vulnerability Database (record CVE-2020-36766), CISA KEV, FIRST EPSS (scores of 2026-09-28). This page is refreshed as NVD updates the record.