CyberSecBulletin
CVE-2026-68348NVD status: Received

Linux: Out-of-bounds Read

Published Updated By the CyberSecBulletin desk

CVE-2026-68348 is a high-severity out-of-bounds read vulnerability in Linux, with a CVSS 3.1 base score of 7.1 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 3ddb0d3e36507615e5ef010a879357a54870adf5, 0ec45e80a82785ee147516fdecf5c93707dec119, 41ae2b7d37c3dd82302167496836cca9f0328374 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 0.13% 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 3ddb0d3e36507615e5ef010a879357a54870adf5 or 0ec45e80a82785ee147516fdecf5c93707dec119 or 41ae2b7d37c3dd82302167496836cca9f0328374 or e75ef37d83c90b09bedb601624b47e168202b226, whichever matches your release line, or a later version.

Affected products and versions

VendorProductAffected versionsFixed in
LinuxLinux915f5eadebd29ba185ac506766a90120153b7e14 up to, but not including, 3ddb0d3e36507615e5ef010a879357a54870adf5; 915f5eadebd29ba185ac506766a90120153b7e14 up to, but not including, 0ec45e80a82785ee147516fdecf5c93707dec119; 915f5eadebd29ba185ac506766a90120153b7e14 up to, but not including, 41ae2b7d37c3dd82302167496836cca9f0328374; 915f5eadebd29ba185ac506766a90120153b7e14 up to, but not including, e75ef37d83c90b09bedb601624b47e168202b226; 915f5eadebd29ba185ac506766a90120153b7e14 up to, but not including, bc889dfcea9294a1eae7f8e2f3573a90764ae4d0; 6.53ddb0d3e36507615e5ef010a879357a54870adf5, 0ec45e80a82785ee147516fdecf5c93707dec119, 41ae2b7d37c3dd82302167496836cca9f0328374, e75ef37d83c90b09bedb601624b47e168202b226, bc889dfcea9294a1eae7f8e2f3573a90764ae4d0

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
UnchangedImpact stays within the vulnerable component.
Confidentiality
HighAll data handled by the component can be read.
Integrity
NoneNothing can be modified.
Availability
HighThe component can be taken down completely.

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

Official description

In the Linux kernel, the following vulnerability has been resolved: ASoC: tas2781: bound firmware description string parsing The TAS2781 firmware parser reads several variable-length description strings with strlen() before checking that the string terminator is present inside the firmware blob. A malformed firmware image without a NUL terminator can therefore make the parser walk past the end of the firmware buffer before the later size checks run. Add a small bounded string-length helper and use it for all description fields that are parsed from the firmware buffer. Keep the existing size checks for the fixed bytes that follow each string.

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: partial).
  3. Record last changed materially (score, affected products, status or references).

References

Recent Out-of-bounds Read vulnerabilities

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