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CVE-2026-89439platform/x86: ISST: Add a NULL check for sst_inst[]
- —Not scoredno CVSS score yet
- 0.21%Exploitation in 30 daysEPSS · top 89% 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: platform/x86: ISST: Add a NULL check for sst_inst[] To be consistent with other places, add a NULL check for failed socket loading by checking isst_common.sst_inst[].
Timeline
ID reserved
By Linux
Published
- 40 days later
· 40 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
No CVSS score yet: neither the CNA, CISA nor NVD has scored this CVE. NVD status: Received.
- EPSS (exploitation in 30 days)
- 0.21% · top 89% of all CVEs (14 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Not scored.
Affected products
- affected d805456c712f93ba8a012430f2a93bec133b6ff4 – < f7c9370dd1d3cedb80c635528271cab1d0bcb103
- affected d805456c712f93ba8a012430f2a93bec133b6ff4 – < 49a95fe1f64f41c2e8959e525aefdb10f23b293e
- affected d805456c712f93ba8a012430f2a93bec133b6ff4 – < c280fcd53b938b70c7dee9ce1a66b32bd6e5ebaa
- affected d805456c712f93ba8a012430f2a93bec133b6ff4 – < ef7975af15126dd70ace519da7bb33f2848b9064
- affected d805456c712f93ba8a012430f2a93bec133b6ff4 – < 3de2776e9d7073765c10c2326c2bda5926811ea6
- affected 6.4
- unaffected < 6.4
- unaffected 6.6.160 – ≤ 6.6.*
- unaffected 6.12.109 – ≤ 6.12.*
- unaffected 6.18.50 – ≤ 6.18.*
- unaffected 7.2.4 – ≤ 7.2.*
- unaffected 7.3 – ≤ *
References
References5
- https://git.kernel.org/stable/c/f7c9370dd1d3cedb80c635528271cab1d0bcb103 (opens in a new tab)
- https://git.kernel.org/stable/c/49a95fe1f64f41c2e8959e525aefdb10f23b293e (opens in a new tab)
- https://git.kernel.org/stable/c/c280fcd53b938b70c7dee9ce1a66b32bd6e5ebaa (opens in a new tab)
- https://git.kernel.org/stable/c/ef7975af15126dd70ace519da7bb33f2848b9064 (opens in a new tab)
- https://git.kernel.org/stable/c/3de2776e9d7073765c10c2326c2bda5926811ea6 (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-2026-76345 (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-2026-89439)Record last updated .