Back
CVE-2026-45993LoongArch: Add spectre boundry for syscall dispatch table
- 5.5MediumCVSS 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: LoongArch: Add spectre boundry for syscall dispatch table The LoongArch syscall number is directly controlled by userspace, but does not have a array_index_nospec() boundry to prevent access past the syscall function pointer tables.
Timeline
ID reserved
By Linux
- 14 days later
· 14 days later
Published
- 23 days later
· 23 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 |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.14% · top 96% of all CVEs (12 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.
Affected products
- affected be769645a2aef577f07afdcb4de8fad20b6d57c0 – < c8a8e863928424046b8fd328f02c359baa0a0c3f
- affected be769645a2aef577f07afdcb4de8fad20b6d57c0 – < 108f2cd13577a410c0ad6ea00708596d9d0dfc90
- affected be769645a2aef577f07afdcb4de8fad20b6d57c0 – < 07040904ad217545be096d4280ed33c02f6a3750
- affected be769645a2aef577f07afdcb4de8fad20b6d57c0 – < 85cbf7fb568af5358aae61925c4e66b8f5e1439d
- affected be769645a2aef577f07afdcb4de8fad20b6d57c0 – < bc84a109c2082dd0c4b38e8d923c046b41977533
- affected be769645a2aef577f07afdcb4de8fad20b6d57c0 – < 0c965d2784fbbd7f8e3b96d875c9cfdf7c00da3d
- affected 5.19
- unaffected < 5.19
- unaffected 6.1.176 – ≤ 6.1.*
- unaffected 6.6.140 – ≤ 6.6.*
- unaffected 6.12.86 – ≤ 6.12.*
- unaffected 6.18.27 – ≤ 6.18.*
- unaffected 7.0.4 – ≤ 7.0.*
- unaffected 7.1 – ≤ *
References
References6
- https://git.kernel.org/stable/c/c8a8e863928424046b8fd328f02c359baa0a0c3f (opens in a new tab)
- https://git.kernel.org/stable/c/108f2cd13577a410c0ad6ea00708596d9d0dfc90 (opens in a new tab)
- https://git.kernel.org/stable/c/07040904ad217545be096d4280ed33c02f6a3750 (opens in a new tab)
- https://git.kernel.org/stable/c/85cbf7fb568af5358aae61925c4e66b8f5e1439d (opens in a new tab)
- https://git.kernel.org/stable/c/bc84a109c2082dd0c4b38e8d923c046b41977533 (opens in a new tab)
- https://git.kernel.org/stable/c/0c965d2784fbbd7f8e3b96d875c9cfdf7c00da3d (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-2026-32289 (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-2026-45993)Record last updated .