CVE-2026-43406
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…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.61%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 9.1 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
- EPSS
- 0.61% probability · 49th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-125
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
EPSS 0.6% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://git.kernel.org/stable/c/035867ae6f18df0aeedb2a57a5b74091bd4e3fe8Patch
- https://git.kernel.org/stable/c/50156622eb0888e62541d715a98584480a1bc7cbPatch
- https://git.kernel.org/stable/c/69fb5d91bba44ecf7eb80530b85fa4fb028921d5Patch
- https://git.kernel.org/stable/c/69fe5af33fa3806f398d21c081d73c66e5523bc2Patch
- https://git.kernel.org/stable/c/75582aaa580c11aed4c7731cad6b068b700e7efbPatch
- https://git.kernel.org/stable/c/76ccf21a12c5f6d6790bc32c7da82446d877b2f4Patch
- https://git.kernel.org/stable/c/dbd857a9e1e33ea71eaf3e211877027e533770d1Patch
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.