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CVE-2026-43373

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CVE-2026-43373

Published: May 8, 2026

Modified: May 11, 2026

PUBLISHED

CVSS v3.1

7.5

HIGH

Description

In the Linux kernel, the following vulnerability has been resolved: net: ncsi: fix skb leak in error paths Early return paths in NCSI RX and AEN handlers fail to release the received skb, resulting in a memory leak. Specifically, ncsi_aen_handler() returns on invalid AEN packets without consuming the skb. Similarly, ncsi_rcv_rsp() exits early when failing to resolve the NCSI device, response handler, or request, leaving the skb unfreed.

VendorProductVersions

Linux

Linux

affected
138635cc27c9737f940c3aa80912ff7a61c825af - < 9891d7f4f1ede473c54b49776ae07755083eef06
affected
138635cc27c9737f940c3aa80912ff7a61c825af - < fef5aa6e3bcf3c8053307642663a63b7362d7552
affected
138635cc27c9737f940c3aa80912ff7a61c825af - < 81d6aee32f8f7bbc175c05dbf61f4430bfb88c4a
affected
138635cc27c9737f940c3aa80912ff7a61c825af - < 59962588197863d0d746879f193905c0c6b3df49
affected
138635cc27c9737f940c3aa80912ff7a61c825af - < 553366c271479c0d571dd1bb5d1bcde4747fb82e

+3 more versions

Linux

Linux

affected
4.8
unaffected
0 - < 4.8
unaffected
5.10.253 - <= 5.10.*
unaffected
5.15.203 - <= 5.15.*
unaffected
6.1.167 - <= 6.1.*

+5 more versions

CVSS v3.1 Details

CVSS v3.1 Vector

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

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