CyberSecBulletin
CVE-2026-68352NVD status: Received

Linux: Out-of-bounds Read

Published Updated By the CyberSecBulletin desk

CVE-2026-68352 is a high-severity out-of-bounds read vulnerability in Linux, with a CVSS 3.1 base score of 8.3 out of 10. It can be exploited from the same local network by an unauthenticated attacker, without any action from a user. The record lists versions 7cae33e3e09a080db96e3a8980c2c8d288318320, 1eeed9efc9a40e0635e910c37fee86543041b4e1, a38d7d6376b295245b53bc98b7ca682c027abaf7 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 0.41% 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 7cae33e3e09a080db96e3a8980c2c8d288318320 or 1eeed9efc9a40e0635e910c37fee86543041b4e1 or a38d7d6376b295245b53bc98b7ca682c027abaf7 or 1c690f7c4c5b37108ac8c98b94ce1b3c655a4f5e, whichever matches your release line, or a later version.

Affected products and versions

VendorProductAffected versionsFixed in
LinuxLinuxbdcd81707973cf8aa9305337166f8ee842a050d4 up to, but not including, 7cae33e3e09a080db96e3a8980c2c8d288318320; bdcd81707973cf8aa9305337166f8ee842a050d4 up to, but not including, 1eeed9efc9a40e0635e910c37fee86543041b4e1; bdcd81707973cf8aa9305337166f8ee842a050d4 up to, but not including, a38d7d6376b295245b53bc98b7ca682c027abaf7; bdcd81707973cf8aa9305337166f8ee842a050d4 up to, but not including, 1c690f7c4c5b37108ac8c98b94ce1b3c655a4f5e; bdcd81707973cf8aa9305337166f8ee842a050d4 up to, but not including, d70c0a850c21b57a6f46ce363860203389bbeaa6; bdcd81707973cf8aa9305337166f8ee842a050d4 up to, but not including, 33b5342d2080657054ddf89ef1199b426a37dae8; bdcd81707973cf8aa9305337166f8ee842a050d4 up to, but not including, 94e1bfcefe8264a207c2fda2febb954e70a34b42; bdcd81707973cf8aa9305337166f8ee842a050d4 up to, but not including, 6b47b29730de3232b919d8362749f6814c5f2a33; and 1 more ranges7cae33e3e09a080db96e3a8980c2c8d288318320, 1eeed9efc9a40e0635e910c37fee86543041b4e1, a38d7d6376b295245b53bc98b7ca682c027abaf7, 1c690f7c4c5b37108ac8c98b94ce1b3c655a4f5e, d70c0a850c21b57a6f46ce363860203389bbeaa6, 33b5342d2080657054ddf89ef1199b426a37dae8

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
AdjacentThe attacker must be on the same local network segment.
Attack complexity
LowNo special conditions are needed; the attack works reliably.
Privileges required
NoneNo account or login is needed.
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
LowLimited modification of data is possible.
Availability
HighThe component can be taken down completely.

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

Official description

In the Linux kernel, the following vulnerability has been resolved: wifi: ath6kl: fix OOB read from firmware IE lengths in connect event The firmware-controlled beacon_ie_len, assoc_req_len, and assoc_resp_len fields in ath6kl_wmi_connect_event_rx() are not validated against the buffer length. Their sum (up to 765) can exceed the actual WMI event data, causing out-of-bounds reads during IE parsing and state corruption of wmi->is_wmm_enabled. Add a check that the total IE length fits within the buffer.

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

Spotted an error? Tell us.