CVE-2026-89588ACPI: APEI: GHES: fix ARM section length accounting after header
- 8.4HighCVSS base score
- 0.18%Exploitation in 30 daysEPSS · top 92% 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: ACPI: APEI: GHES: fix ARM section length accounting after header In ghes_handle_arm_hw_error(), after skipping the cper_sec_proc_arm header with (err + 1), the remaining length was reduced by sizeof(err) (pointer size) instead of sizeof(*err) (structure size). That overestimates the bytes left for cper_arm_err_info records and can let the parser read past the CPER section when err_info_num is large enough relative to error_data_length. Use sizeof(*err) so the length accounting matches the pointer advance and the earlier sizeof(*err) size check.
Timeline
ID reserved
By Linux
Published
- 38 days later
· 38 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 | High8.4 | CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Received | 3.1 | High8.4 | CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.18% · top 92% of all CVEs (14 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.4.
Affected products
- affected 242c652849d979d0133c315a42d9acea0ff88390 – < 5ff385e9403e87ae33f65b8c38698d3b1e92cfde
- affected 136093ba4161e0080088abff48273f6830a47766 – < 452eb28e03015abec6d4bf6488ee567706ade4e1
- affected 87880af2d24e62a84ed19943dbdd524f097172f2 – < b48b613073c3d652cb1823c15d16f7067cf4cee4
- affected 87880af2d24e62a84ed19943dbdd524f097172f2 – < 903308ea40adf0577d82eab69882faf8836326ce
- affected db103b8bd3a4aca69b1b5fe8831a6ed75ac4b3bd
- affected 6.12.75 – < 6.12.109
- affected 6.18.16 – < 6.18.50
- affected 6.19.6 – < 6.20
- affected 7.0
- unaffected < 7.0
- unaffected 6.12.109 – ≤ 6.12.*
- unaffected 6.18.50 – ≤ 6.18.*
- unaffected 7.2.4 – ≤ 7.2.*
- unaffected 7.3 – ≤ *
References
References4
- https://git.kernel.org/stable/c/5ff385e9403e87ae33f65b8c38698d3b1e92cfde (opens in a new tab)
- https://git.kernel.org/stable/c/452eb28e03015abec6d4bf6488ee567706ade4e1 (opens in a new tab)
- https://git.kernel.org/stable/c/b48b613073c3d652cb1823c15d16f7067cf4cee4 (opens in a new tab)
- https://git.kernel.org/stable/c/903308ea40adf0577d82eab69882faf8836326ce (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-2026-76500 (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-2026-89588)Record last updated .