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CVE-2026-74296RDMA/mlx5: Release the HW‑provided UAR index rather than the SW one
- 7.8HighCVSS base score
- 0.18%Exploitation in 30 daysEPSS · top 93% 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: RDMA/mlx5: Release the HW‑provided UAR index rather than the SW one Free the UAR index returned by the hardware.
Timeline
ID reserved
By Linux
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)
- 0.18% · top 93% of all CVEs (13 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: total
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.8.
Affected products
- affected 4ed131d0bb1597ce12fff22d9d7fc9720a6e8cf0 – < 80f1f49f53a42733e60c90e0ec545e647969214d
- affected 4ed131d0bb1597ce12fff22d9d7fc9720a6e8cf0 – < aabfc845838ef453f1d22d7665596f9cc48be7dd
- affected 4ed131d0bb1597ce12fff22d9d7fc9720a6e8cf0 – < 6f83de384ca582fa87b4c2b0d03bd1ed3bf9a2ee
- affected 4ed131d0bb1597ce12fff22d9d7fc9720a6e8cf0 – < d3ff718c0c7153e2641e6a09507bace14fc5c402
- affected 4ed131d0bb1597ce12fff22d9d7fc9720a6e8cf0 – < ef369446f62903ea079e8a7954b5bf8bb8300fe3
- affected 4ed131d0bb1597ce12fff22d9d7fc9720a6e8cf0 – < 449ae7927152e46acbe5f19f97eafdae6d3a96b1
- affected 4.16
- unaffected < 4.16
- unaffected 6.1.178 – ≤ 6.1.*
- unaffected 6.6.145 – ≤ 6.6.*
- unaffected 6.12.97 – ≤ 6.12.*
- unaffected 6.18.40 – ≤ 6.18.*
- unaffected 7.1.5 – ≤ 7.1.*
- unaffected 7.2 – ≤ *
References
References6
- https://git.kernel.org/stable/c/80f1f49f53a42733e60c90e0ec545e647969214d (opens in a new tab)
- https://git.kernel.org/stable/c/aabfc845838ef453f1d22d7665596f9cc48be7dd (opens in a new tab)
- https://git.kernel.org/stable/c/6f83de384ca582fa87b4c2b0d03bd1ed3bf9a2ee (opens in a new tab)
- https://git.kernel.org/stable/c/d3ff718c0c7153e2641e6a09507bace14fc5c402 (opens in a new tab)
- https://git.kernel.org/stable/c/ef369446f62903ea079e8a7954b5bf8bb8300fe3 (opens in a new tab)
- https://git.kernel.org/stable/c/449ae7927152e46acbe5f19f97eafdae6d3a96b1 (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-2026-59443 (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-2026-74296)Record last updated .