PT-2026-39034 · Linux+2 · Linux Kernel+2

CVE-2026-43373

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Published

2026-05-08

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Updated

2026-08-30

CVSS v3.1

7.5

High

VectorAV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)
Description A memory leak occurs in the Linux kernel within the NCSI RX and AEN handlers. Specifically, the ncsi aen handler() function returns on invalid AEN packets without consuming the socket buffer (skb). Additionally, the ncsi rcv rsp() function exits early when it fails to resolve the NCSI device, response handler, or request, leaving the skb unfreed.
Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Memory Leak

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Weakness Enumeration

Related Identifiers

CVE-2026-43373
OESA-2026-3532
OPENSUSE-SU-2026:21388-1
SUSE-SU-2026:22742-1
SUSE-SU-2026:22769-1
SUSE-SU-2026:22809-1
SUSE-SU-2026:22810-1
SUSE-SU-2026:22812-1
SUSE-SU-2026:22835-1
SUSE-SU-2026:22903-1
SUSE-SU-2026:22904-1
SUSE-SU-2026:3130-1
SUSE-SU-2026:3166-1
SUSE-SU-2026:3594-1
USN-8567-1
USN-8574-1
USN-8574-2
USN-8574-3
USN-8575-1
USN-8575-2
USN-8575-3
USN-8576-1
USN-8576-2
USN-8595-1
USN-8595-2
USN-8595-3
USN-8596-1
USN-8597-1
USN-8606-1
USN-8607-1
USN-8608-1
USN-8609-1
USN-8610-1
USN-8619-1
USN-8620-1
USN-8620-2
USN-8620-3
USN-8620-4
USN-8665-1
USN-8668-1

Affected Products

Linuxmint
Linux Kernel
Ubuntu