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Vulnerabilities CVE-2026-43406

CVE-2026-43406

Critical
Open
TLP:CLEAR

libceph: prevent potential out-of-bounds reads in process_message_header()

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Description

In the Linux kernel, the following vulnerability has been resolved: libceph: prevent potential out-of-bounds reads in process_message_header() If the message frame is (maliciously) corrupted in a way that the length of the control segment ends up being less than the size of the message header or a different frame is made to look like a message frame, out-of-bounds reads may ensue in process_message_header(). Perform an explicit bounds check before decoding the message header.

Details

CVSS Score
9.1
EPSS Score
0.50%

40.5th percentile

CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Confidence
90%
Published
May 8, 2026
Last Modified
Aug 5, 2026
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