CVE-2026-43383
critical · 9.4In the Linux kernel, the following vulnerability has been resolved: net/tcp-md5: Fix MAC comparison to be constant-time To prevent timing attacks, MACs need to be compared in constant time. Use the appropriate helper function for this.
9.4
CVSS
0.4%
EPSS (exploit prob.)
38th
EPSS percentile
2026-05-08
Published
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| linux | linux_kernel | >= 2.6.20, < 5.10.253 |
| linux | linux_kernel | >= 5.11, < 6.1.167 |
| linux | linux_kernel | >= 6.2, < 6.6.130 |
| linux | linux_kernel | >= 6.7, < 6.12.78 |
| linux | linux_kernel | >= 6.13, < 6.18.19 |
| linux | linux_kernel | >= 6.19, < 6.19.9 |
| linux | linux_kernel | 7.0 |
| linux | linux_kernel | 7.0 |
Check a specific version with /api/v1/cve/match.
References
- https://git.kernel.org/stable/c/02669e2a4d207068edce7e8b5fafd85822018ce6
- https://git.kernel.org/stable/c/345a9530756528d7ca407663d659c3c40e75c3dd
- https://git.kernel.org/stable/c/46d0d6f50dab706637f4c18a470aac20a21900d3
- https://git.kernel.org/stable/c/5d305a95130a8d08b9545e47f1e18d29d59866cb
- https://git.kernel.org/stable/c/821c8751fdeecdeecabeb11704dd33439c9e4bbc
- https://git.kernel.org/stable/c/ae3831b44f477de048287493e184fc3ff913b624
- https://git.kernel.org/stable/c/b502e97e29d791ff7a8051f29a414535739be218
- https://git.kernel.org/stable/c/ff44ec94d4fc8348600a69de0a8fa1102c23bce8
Query this programmatically:
curl https://evil-db.io/api/v1/cve/CVE-2026-43383