CVE-2026-90341firmware: coreboot: Validate table bounds
- 7.7HighCVSS base score
- 0.19%Exploitation in 30 daysEPSS · top 91% 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: firmware: coreboot: Validate table bounds The existing coreboot_table_populate() bounds checks limit individual entries to the mapped length. However, coreboot_table_probe() replaces the platform resource length with header and table sizes supplied by firmware before mapping the full table. A malformed table can overflow the 32-bit size addition or advertise an extent beyond the resource, causing the driver to map and parse memory outside the resource. A resource shorter than the fixed header is also mapped as though it contained a complete header. Reject resources shorter than the fixed header. After validating the signature, require a complete header, calculate the advertised extent with overflow checking, and reject extents beyond the resource before remapping the table.
Timeline
ID reserved
By Linux
- 6 days later
· 6 days later
Published
- 32 days later
· 32 days 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 | High7.7 | CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H |
| NVDNVD · Received | 3.1 | High7.7 | CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.19% · top 91% of all CVEs (13 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.7.
Affected products
- affected d384d6f43d1ec3f1225ab0275fd592c5980bd830 – < 3cca0d6dd4c2636d2514234233cb02db76621607
- affected d384d6f43d1ec3f1225ab0275fd592c5980bd830 – < f79f621215a0944c4a0e1b3b86b99e433ae8c527
- affected d384d6f43d1ec3f1225ab0275fd592c5980bd830 – < d848fac90c6f0566e7b93066b0b86024f65f395e
- affected d384d6f43d1ec3f1225ab0275fd592c5980bd830 – < 88027241c1d2c3213bac937a1c2cb89a5775a413
- affected d384d6f43d1ec3f1225ab0275fd592c5980bd830 – < fd93859ecfa5b6495a6863c18fd923a7666def26
- affected d384d6f43d1ec3f1225ab0275fd592c5980bd830 – < 2d98a3b89394f283f054a4a54587c14ee89acaf9
- affected d384d6f43d1ec3f1225ab0275fd592c5980bd830 – < e82f260a74dea8cdd7857f2cc66f73d0da522bb3
- affected d384d6f43d1ec3f1225ab0275fd592c5980bd830 – < a58a57a1076f8c5dae0327e3710899478c3be901
- affected 4.12
- unaffected < 4.12
- unaffected 5.10.270 – ≤ 5.10.*
- unaffected 5.15.221 – ≤ 5.15.*
- unaffected 6.1.188 – ≤ 6.1.*
- unaffected 6.6.157 – ≤ 6.6.*
- unaffected 6.12.110 – ≤ 6.12.*
- unaffected 6.18.52 – ≤ 6.18.*
- unaffected 7.2.6 – ≤ 7.2.*
- unaffected 7.3 – ≤ *
References
References8
- https://git.kernel.org/stable/c/3cca0d6dd4c2636d2514234233cb02db76621607 (opens in a new tab)
- https://git.kernel.org/stable/c/f79f621215a0944c4a0e1b3b86b99e433ae8c527 (opens in a new tab)
- https://git.kernel.org/stable/c/d848fac90c6f0566e7b93066b0b86024f65f395e (opens in a new tab)
- https://git.kernel.org/stable/c/88027241c1d2c3213bac937a1c2cb89a5775a413 (opens in a new tab)
- https://git.kernel.org/stable/c/fd93859ecfa5b6495a6863c18fd923a7666def26 (opens in a new tab)
- https://git.kernel.org/stable/c/2d98a3b89394f283f054a4a54587c14ee89acaf9 (opens in a new tab)
- https://git.kernel.org/stable/c/e82f260a74dea8cdd7857f2cc66f73d0da522bb3 (opens in a new tab)
- https://git.kernel.org/stable/c/a58a57a1076f8c5dae0327e3710899478c3be901 (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-2026-82002 (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-2026-90341)Record last updated .