High 7.8Published Aug 10, 2026

CVE-2026-68253drm/i915/hdcp: check streams[] bounds before overflow

Updated under an hour ago (Oct 26, 2026, 7:23 PM ET)

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No exploitation reported and no EPSS estimate yet.

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Exploited in the last 30 days

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)

CVSS: 7.8 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): CWE-787
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Received
Record last updated: Oct 19, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from e03187e12cae57c09b521b6f7dd7c7f9aa2b62e9 before 336cf6d80d41457442b659e7ba7a7badc0ffe79d; from e03187e12cae57c09b521b6f7dd7c7f9aa2b62e9 before 389079bf04e6f0c6f10f5b879f6d7a9cf80f0567; from e03187e12cae57c09b521b6f7dd7c7f9aa2b62e9 before 84351f12390349ba010920fc247e1a0b12e41eb3; from e03187e12cae57c09b521b6f7dd7c7f9aa2b62e9 before 2106fb490b2c6003e23ad6ff36ce823a2170e138; from e03187e12cae57c09b521b6f7dd7c7f9aa2b62e9 before 3d2ef8d389495e7889c6062d8bddc46d2a5fbdef; from e03187e12cae57c09b521b6f7dd7c7f9aa2b62e9 before 984085c5b53572e2e03fd5fc4817e86ef1effc6e; from e03187e12cae57c09b521b6f7dd7c7f9aa2b62e9 before bbb15a6b042d02e5508a02b4847e02d2579ee7bc	CNA record

References

References

https://git.kernel.org/stable/c/336cf6d80d41457442b659e7ba7a7badc0ffe79d
https://git.kernel.org/stable/c/389079bf04e6f0c6f10f5b879f6d7a9cf80f0567
https://git.kernel.org/stable/c/84351f12390349ba010920fc247e1a0b12e41eb3
https://git.kernel.org/stable/c/2106fb490b2c6003e23ad6ff36ce823a2170e138
https://git.kernel.org/stable/c/3d2ef8d389495e7889c6062d8bddc46d2a5fbdef
https://git.kernel.org/stable/c/984085c5b53572e2e03fd5fc4817e86ef1effc6e
https://git.kernel.org/stable/c/bbb15a6b042d02e5508a02b4847e02d2579ee7bc

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.