CVE-2026-43384

critical · 9.8

In the Linux kernel, the following vulnerability has been resolved: net/tcp-ao: 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.

9.8

CVSS

0.5%

EPSS (exploit prob.)

39th

EPSS percentile

2026-05-08

Published

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

Vendor	Product	Affected versions
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/080b0e210088296dd50d6637c06c1db14246adfe
https://git.kernel.org/stable/c/67edfec516d30d3e62925c397be4a1e5185802fc
https://git.kernel.org/stable/c/8be6ed64966da48b6c4726918f106c18742a5125
https://git.kernel.org/stable/c/a269cbdc442f8658bca35383e34b9d0b0ff95a1c

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2026-43384