CVE-2026-43383
net/tcp-md5: Fix MAC comparison to be constant-time
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
In 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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | May 8, 2026 |
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Affected Versions
Linux / Linux
cfb6eeb4c860592edd123fdea908d23c6ad1c7dc < 821c8751fdeecdeecabeb11704dd33439c9e4bbc cfb6eeb4c860592edd123fdea908d23c6ad1c7dc < 345a9530756528d7ca407663d659c3c40e75c3dd cfb6eeb4c860592edd123fdea908d23c6ad1c7dc < 5d305a95130a8d08b9545e47f1e18d29d59866cb cfb6eeb4c860592edd123fdea908d23c6ad1c7dc < 02669e2a4d207068edce7e8b5fafd85822018ce6 cfb6eeb4c860592edd123fdea908d23c6ad1c7dc < ae3831b44f477de048287493e184fc3ff913b624 cfb6eeb4c860592edd123fdea908d23c6ad1c7dc < b502e97e29d791ff7a8051f29a414535739be218 cfb6eeb4c860592edd123fdea908d23c6ad1c7dc < 46d0d6f50dab706637f4c18a470aac20a21900d3
Linux / Linux
2.6.20
References
git.kernel.org: https://git.kernel.org/stable/c/821c8751fdeecdeecabeb11704dd33439c9e4bbc git.kernel.org: https://git.kernel.org/stable/c/345a9530756528d7ca407663d659c3c40e75c3dd git.kernel.org: https://git.kernel.org/stable/c/5d305a95130a8d08b9545e47f1e18d29d59866cb git.kernel.org: https://git.kernel.org/stable/c/02669e2a4d207068edce7e8b5fafd85822018ce6 git.kernel.org: https://git.kernel.org/stable/c/ae3831b44f477de048287493e184fc3ff913b624 git.kernel.org: https://git.kernel.org/stable/c/b502e97e29d791ff7a8051f29a414535739be218 git.kernel.org: https://git.kernel.org/stable/c/46d0d6f50dab706637f4c18a470aac20a21900d3