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CVE-2026-74320

Published Aug 15, 2026 EPSS 0.18% (7th pctl)

Overview

CVE-2026-74320 is a known-severity vulnerability. It was published on August 15, 2026.

Technical Description

In the Linux kernel, the following vulnerability has been resolved:

fbdev: sm501fb: Fix buffer errors in OF binding code

The code that gets the frame buffer mode from OF has 'use after free',

'buffer overrun' and memory leaks.

info->edid_data isn't free if the probe functions fail or if

pd->def_mode is set.

If both the CRT and PANEL are enabled info->edid_data is used after

being freed and is freed twice.

The string returned by of_get_property(np, "mode", &len) is just

written over either the static "640x480-16@60" or the module parameter

string without any regard for the length (which is most likely longer).

Use kstrump() for the OF mode and free everything before freeing 'info.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Ref git.kernel.org/stable/c/0bc3d909a49e1fd8b8c3f2160d526e672c40621d Ref git.kernel.org/stable/c/47008d59c60ed896085da95f8d4dd40e1677dd3a Ref git.kernel.org/stable/c/48cf0f4c6581ec90104cec9c5bf794a8bf347e30 Ref git.kernel.org/stable/c/9057e3f5db39f0ef0dac2f59f2bc59bf17e36c31 Ref git.kernel.org/stable/c/b2ff450f7f5cfc7143cab57c3ad70293ba8b822a Ref git.kernel.org/stable/c/d374f76e1257ecc5d691a765c512ed2c29a44741 Ref git.kernel.org/stable/c/d8421e09382cfe0bd2a044c8b0a822f64855dd4e Ref git.kernel.org/stable/c/de590cdf7efec8a0b6da90ae2ab5fc5df26810b9

Frequently Asked Questions

What is CVE-2026-74320?

CVE-2026-74320 is a known-severity vulnerability. It was published on August 15, 2026.

How severe is CVE-2026-74320?

CVSS score information is not yet available for this vulnerability. Check back as the CVE record is updated by NVD analysts.

How do I fix or remediate CVE-2026-74320?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-74320?

CyberStrike's AI-powered security agents can automatically detect CVE-2026-74320 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.

How CyberStrike Helps

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