CVE-2026-68253drm/i915/hdcp: check streams[] bounds before overflow
- 7.8HighCVSS base score
- 0.14%Exploitation in 30 daysEPSS · top 96% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
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)
Timeline
ID reserved
By Linux
- 11 days later
· 11 days later
Published
- 2 months later
· 2 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| LinuxCNA (assigner) | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Received | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.14% · top 96% of all CVEs (14 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: total
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.8.
Affected products
- affected e03187e12cae57c09b521b6f7dd7c7f9aa2b62e9 – < 336cf6d80d41457442b659e7ba7a7badc0ffe79d
- affected e03187e12cae57c09b521b6f7dd7c7f9aa2b62e9 – < 389079bf04e6f0c6f10f5b879f6d7a9cf80f0567
- affected e03187e12cae57c09b521b6f7dd7c7f9aa2b62e9 – < 84351f12390349ba010920fc247e1a0b12e41eb3
- affected e03187e12cae57c09b521b6f7dd7c7f9aa2b62e9 – < 2106fb490b2c6003e23ad6ff36ce823a2170e138
- affected e03187e12cae57c09b521b6f7dd7c7f9aa2b62e9 – < 3d2ef8d389495e7889c6062d8bddc46d2a5fbdef
- affected e03187e12cae57c09b521b6f7dd7c7f9aa2b62e9 – < 984085c5b53572e2e03fd5fc4817e86ef1effc6e
- affected e03187e12cae57c09b521b6f7dd7c7f9aa2b62e9 – < bbb15a6b042d02e5508a02b4847e02d2579ee7bc
- affected 5.12
- unaffected < 5.12
- unaffected 5.15.217 – ≤ 5.15.*
- unaffected 6.1.184 – ≤ 6.1.*
- unaffected 6.6.151 – ≤ 6.6.*
- unaffected 6.12.103 – ≤ 6.12.*
- unaffected 6.18.42 – ≤ 6.18.*
- unaffected 7.1.6 – ≤ 7.1.*
- unaffected 7.2 – ≤ *
References
References7
- https://git.kernel.org/stable/c/336cf6d80d41457442b659e7ba7a7badc0ffe79d (opens in a new tab)
- https://git.kernel.org/stable/c/389079bf04e6f0c6f10f5b879f6d7a9cf80f0567 (opens in a new tab)
- https://git.kernel.org/stable/c/84351f12390349ba010920fc247e1a0b12e41eb3 (opens in a new tab)
- https://git.kernel.org/stable/c/2106fb490b2c6003e23ad6ff36ce823a2170e138 (opens in a new tab)
- https://git.kernel.org/stable/c/3d2ef8d389495e7889c6062d8bddc46d2a5fbdef (opens in a new tab)
- https://git.kernel.org/stable/c/984085c5b53572e2e03fd5fc4817e86ef1effc6e (opens in a new tab)
- https://git.kernel.org/stable/c/bbb15a6b042d02e5508a02b4847e02d2579ee7bc (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-55354 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-68253)Record last updated .