VULNERABILITY INTELLIGENCE
CVE-2026-45865
CVSS score5.5 MEDIUM
EPSS probability0.16%
CISA KEVNot currently listed
Published2026-05-27
Last modified2026-06-25
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Description
In the Linux kernel, the following vulnerability has been resolved: mctp i2c: initialise event handler read bytes Set a 0xff value for i2c reads of an mctp-i2c device. Otherwise reads will return "val" from the i2c bus driver. For i2c-aspeed and i2c-npcm7xx that is a stack uninitialised u8. Tested with "i2ctransfer -y 1 r10@0x34" where 0x34 is a mctp-i2c instance, now it returns all 0xff.
Weakness classification
- nvd@nist.gov: NVD-CWE-noinfo