cbcvebase.
CVE-2025-21903
published 2025-04-01

CVE-2025-21903: In the Linux kernel, the following vulnerability has been resolved: mctp i3c: handle NULL header address daddr can be NULL if there is no neighbour table entry…

PriorityP418medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.19%
9.0th percentile
In the Linux kernel, the following vulnerability has been resolved: mctp i3c: handle NULL header address daddr can be NULL if there is no neighbour table entry present, in that case the tx packet should be dropped. saddr will usually be set by MCTP core, but check for NULL in case a packet is transmitted by a different protocol.

Affected

11 ranges
VendorProductVersion rangeFixed in
debianlinux< linux 6.12.19-1 (forky)linux 6.12.19-1 (forky)
linuxlinux
linuxlinux>= c8755b29b58ec65be17bcb8c40763d2dcb1f1db5 < d8be54c35aee29d96d1350b1b6f153be4da37c07d8be54c35aee29d96d1350b1b6f153be4da37c07
linuxlinux>= c8755b29b58ec65be17bcb8c40763d2dcb1f1db5 < 740bf9c9b715cc327d34b1e2d4ee79fcd4c47a56740bf9c9b715cc327d34b1e2d4ee79fcd4c47a56
linuxlinux>= c8755b29b58ec65be17bcb8c40763d2dcb1f1db5 < cf7ee25e70c6edfac4553d6b671e8b19db1d9573cf7ee25e70c6edfac4553d6b671e8b19db1d9573
linuxlinux_kernel
linuxlinux_kernel>= 0 < 6.12.19-16.12.19-1
linuxlinux_kernel>= 0 < 6.12.19-16.12.19-1
linuxlinux_kernel>= 0 < 6.8.0-84.846.8.0-84.84
linuxlinux_kernel>= 6.13 < 6.13.76.13.7
linuxlinux_kernel>= 6.7 < 6.12.196.12.19

CVSS provenance

nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
osv5.9MEDIUM
vendor_ubuntu5.9MEDIUM
vendor_debian5.5LOW
vendor_redhat5.5MEDIUM
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