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CVE-2026-68253

7.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: drm/i915/hdcp: check streams[] bounds before overflow The data->streams[] overflow check is done after the buffer overflow has…

Published Aug 10, 2026EPSS 0.14%

Overview

CVE-2026-68253 is a high-severity vulnerability. It was published on August 10, 2026 and has a CVSS 3.1 base score of 7.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

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

drm/i915/hdcp: check streams[] bounds before overflow

The data->streams[] overflow check is done after the buffer overflow has

already happened. Move the overflow check before the write.

Side note, emitting a warning splat with a backtrace might be overkill

here, but prefer not changing the behaviour other than not doing the

overrun.

Discovered using AI-assisted static analysis confirmed by Intel Product

Security.

(cherry picked from commit 9284ab3b6e776c315883ac2611283d263c9460fd)

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

Refgit.kernel.org/stable/c/2106fb490b2c6003e23ad6ff36ce823a2170e138Refgit.kernel.org/stable/c/336cf6d80d41457442b659e7ba7a7badc0ffe79dRefgit.kernel.org/stable/c/389079bf04e6f0c6f10f5b879f6d7a9cf80f0567Refgit.kernel.org/stable/c/3d2ef8d389495e7889c6062d8bddc46d2a5fbdefRefgit.kernel.org/stable/c/84351f12390349ba010920fc247e1a0b12e41eb3Refgit.kernel.org/stable/c/984085c5b53572e2e03fd5fc4817e86ef1effc6eRefgit.kernel.org/stable/c/bbb15a6b042d02e5508a02b4847e02d2579ee7bc

How CyberStrike helps

Frequently asked questions

What is CVE-2026-68253?

CVE-2026-68253 is a high-severity vulnerability. It was published on August 10, 2026 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2026-68253?

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-68253?

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-2026-68253?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-68253 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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