CyberSecBulletin
CVE-2026-53375NVD status: Modified

Linux: Out-of-bounds Read

Published Updated By the CyberSecBulletin desk

CVE-2026-53375 is a high-severity out-of-bounds read vulnerability in Linux, with a CVSS 3.1 base score of 8.8 out of 10. It can be exploited with local access to the system by an attacker with a low-privileged account, without any action from a user. The record lists versions 2d66d1f5d8c0434e9a5ad21cc6eaf3a5e32141d5, 944db9cfa5373f67eb94621d4c2eee572c05fa3f, 0ee17150763962671f43a62ddf8f6ea1feaff438 as the first without the flaw, so updating Linux to one of those releases or later removes the exposure. There is no confirmed exploitation so far. EPSS estimates a 0.18% chance of exploitation within 30 days, which is low compared with other CVEs.

Next patch cycle

High severity with no evidence of exploitation so far.

What to do

  1. Update Linux to 2d66d1f5d8c0434e9a5ad21cc6eaf3a5e32141d5 or 944db9cfa5373f67eb94621d4c2eee572c05fa3f or 0ee17150763962671f43a62ddf8f6ea1feaff438 or b3d1a0a45c4aec484fa2a5b060b611e3d3064470, whichever matches your release line, or a later version.
  2. Update Linux Kernel to 6.1.175 or 6.6.140 or 6.12.90 or 6.18.32, whichever matches your release line, or a later version.

Affected products and versions

VendorProductAffected versionsFixed in
LinuxLinuxd38ceaf99ed015f2a0b9af3499791bd3a3daae21 up to, but not including, 2d66d1f5d8c0434e9a5ad21cc6eaf3a5e32141d5; d38ceaf99ed015f2a0b9af3499791bd3a3daae21 up to, but not including, 944db9cfa5373f67eb94621d4c2eee572c05fa3f; d38ceaf99ed015f2a0b9af3499791bd3a3daae21 up to, but not including, 0ee17150763962671f43a62ddf8f6ea1feaff438; d38ceaf99ed015f2a0b9af3499791bd3a3daae21 up to, but not including, b3d1a0a45c4aec484fa2a5b060b611e3d3064470; d38ceaf99ed015f2a0b9af3499791bd3a3daae21 up to, but not including, ea2c554e700b86a04534b4c24ece5844e8c5f07e; d38ceaf99ed015f2a0b9af3499791bd3a3daae21 up to, but not including, de2a02cc28d6d5d37db07d00a9a684c754a5fd74; 4.22d66d1f5d8c0434e9a5ad21cc6eaf3a5e32141d5, 944db9cfa5373f67eb94621d4c2eee572c05fa3f, 0ee17150763962671f43a62ddf8f6ea1feaff438, b3d1a0a45c4aec484fa2a5b060b611e3d3064470, ea2c554e700b86a04534b4c24ece5844e8c5f07e, de2a02cc28d6d5d37db07d00a9a684c754a5fd74
LinuxLinux Kernel4.2 up to, but not including, 6.1.175; 6.2 up to, but not including, 6.6.140; 6.7 up to, but not including, 6.12.90; 6.13 up to, but not including, 6.18.32; 6.19 up to, but not including, 7.0.96.1.175, 6.6.140, 6.12.90, 6.18.32, 7.0.9

Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.

How the severity score breaks down

Attack vector
LocalThe attacker needs local access or must trick a user into running something.
Attack complexity
LowNo special conditions are needed; the attack works reliably.
Privileges required
LowA basic user account is enough.
User interaction
NoneNo action by a victim is required.
Scope
ChangedThe attack can reach beyond the vulnerable component into other systems.
Confidentiality
HighAll data handled by the component can be read.
Integrity
HighData or code can be modified at will.
Availability
HighThe component can be taken down completely.

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H. Scored by CNA.

Official description

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu/vce: Prevent partial address patches In the case that only one of lo/hi is valid, the patching could result in a bad address written to in FW.

Source: the CVE record as published by its numbering authority, via NVD and CVE.org.

The underlying weakness: Out-of-bounds Read

The product reads data past the end, or before the beginning, of the intended buffer.

How developers prevent this class of flaw

  • Use a language that provides appropriate memory abstractions.

More Out-of-bounds Read vulnerabilities (CWE-125)

Timeline

  1. CVE record published.
  2. CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: total).
  3. Record last changed materially (score, affected products, status or references).

References

Recent Out-of-bounds Read vulnerabilities

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