CVE-2026-93160

high

Description

In the Linux kernel, the following vulnerability has been resolved: crypto: atmel-ecc - reject hardware ECDH without a public key The hardware ECDH path in atmel_ecdh_compute_shared_secret() uses the private key stored in the device. However, the public key is cached only after atmel_ecdh_set_secret() successfully generated that private key for the current tfm. atmel_ecdh_generate_public_key() already rejects requests when no public key is cached. Add the same check to atmel_ecdh_compute_shared_secret() to prevent the device from using a private key that was not generated for the current tfm.

References

https://git.kernel.org/stable/c/f240f9b588f4e2de89822adebf560a96b5d263ed

https://git.kernel.org/stable/c/e64d6f1aae8c837cb3f0446bf44108226d7370f4

https://git.kernel.org/stable/c/add28e9988902d29ea93f4869280b4a16a049ea5

https://git.kernel.org/stable/c/6457162f74f45284ade2da644a4f0c54758ac0a6

https://git.kernel.org/stable/c/5e33791dfcc6459e402a524669093cd953d5b2df

https://git.kernel.org/stable/c/3ea8b780d68f02fe235c5051ce8ac4b4940b9259

https://git.kernel.org/stable/c/33241f198287960bba5fc2251400896762650bfa

https://git.kernel.org/stable/c/2b40bab362d2b598f34e5ccd4694cedc3c2553d4

Details

Source: Mitre, NVD

Published: 2026-09-17

Updated: 2026-09-17

Risk Information

CVSS v2

Base Score: 5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N

Severity: Medium

CVSS v3

Base Score: 7.1

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

Severity: High

EPSS

EPSS: 0.00177