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Vulnerability Intelligence

CVE-2026-63991

Medium 5.5

Published
Last modified
NVD status
Analyzed

Description

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: 6lowpan: check skb_clone() return value in send_mcast_pkt() The skb_clone() function can return NULL if memory allocation fails. send_mcast_pkt() calls skb_clone() without checking the return value, which can lead to a NULL pointer dereference in send_pkt() when it dereferences skb->data. Add a NULL check after skb_clone() and skip the peer if the clone fails.

Affected products

linux: linux kernel

References8

Metrics

CVSS 3.1
5.5 MEDIUM Score source: NVD CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS — exploit probability
0% percentile: 2 · as of 14 November 2026
CWE
CWE-476

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