CVE-2026-68433

Last refreshed2026-10-17

Status: UPDATED | Advisory ID: CVE-2026-68433

Key Details

CVE	CVE-2026-68433
CVSS Score / Version	8.6 (High) / CVSS v3.1
Updated	2026-10-16
CVSS Vector	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H`
CVSS Prose	attack vector is network; attack complexity is low; privileges required is none; user interaction is none; scope is unchanged; confidentiality impact is low; integrity impact is low; availability impact is high.
Affected products	Linux Kernel

Vendor	Product	Affected Versions	Patch Status
Linux	Linux Kernel

Vendor

Product

Affected Versions

Patch Status

Linux

Linux Kernel

Subsystems	OT Supporting Infrastructure
Sectors	All Sectors

In the Linux kernel, the following vulnerability has been resolved:

libceph: bound get_version reply decode to front len

handle_get_version_reply() uses msg->front_alloc_len as the decode

boundary for MON_GET_VERSION_REPLY. That is the size of the reused

reply buffer, not the number of bytes actually received.

A truncated reply can therefore pass ceph_decode_need() and decode the

second u64 from stale tail bytes left in the buffer by an earlier

message, causing an uninitialized memory read.

Use msg->front.iov_len as the receive-side decode boundary, matching

other libceph reply handlers and limiting decoding to the bytes that

were actually read from the wire. (NVD)

Monitor Linux's web page for any future patch releases.

Source	Reference
NVD	https://nvd.nist.gov/vuln/detail/CVE-2026-68433
CVE	https://www.cve.org/CVERecord?id=CVE-2026-68433

Source

Reference

NVD

CVE