CVE-2026-23363

Kernel-memory disclosure via unchecked management-frame length

Published Mar 25, 2026 · Updated Mar 25, 2026

Out-of-bounds read in the mt7925 Wi-Fi driver in Linux Kernel allows local users to disclose memory or interrupt the system. mt7925_mac_write_txwi_80211 accesses IEEE 802.11 management-frame fields without first confirming that the frame buffer is long enough to contain them. Exploitation requires local low-privileged access and an affected kernel with the mt7925 driver; the exact availability failure mode is undisclosed.

CVSS severity7.1
High
EPSS probability0.13%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds read in the mt7925 Wi-Fi driver in Linux Kernel allows local users to disclose memory or interrupt the system. mt7925_mac_write_txwi_80211 accesses IEEE 802.11 management-frame fields without first confirming that the frame buffer is long enough to contain them. Exploitation requires local low-privileged access and an affected kernel with the mt7925 driver; the exact availability failure mode is undisclosed.

The record

CVE
CVE-2026-23363
Published
Mar 25, 2026
Updated
Mar 25, 2026
Vendor
The Linux Kernel Organization
Product
Linux Kernel
Classifications
CWE-125
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 25, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 25, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=6.7
  2. Affected versionversion=c948b5da6bbec742b433138e3e3f9537a85af2e5 <22a6419a8b955df81082285543be3e61816c49b5
  3. Affected versionversion=c948b5da6bbec742b433138e3e3f9537a85af2e5 <2831a8c574545101e6d0df50785fccb16474eb3c
  4. Affected versionversion=c948b5da6bbec742b433138e3e3f9537a85af2e5 <3356464e50e1ee15ba3c324ef6cc5a475c2e96e4
  5. Affected versionversion=c948b5da6bbec742b433138e3e3f9537a85af2e5 <c41a9abd6ae31d130e8f332e7c8800c4c866234b

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linux Kernelversion=6.7; version=c948b5da6bbec742b433138e3e3f9537a85af2e5 <22a6419a8b955df81082285543be3e61816c49b5; version=c948b5da6bbec742b433138e3e3f9537a85af2e5 <2831a8c574545101e6d0df50785fccb16474eb3c; version=c948b5da6bbec742b433138e3e3f9537a85af2e5 <3356464e50e1ee15ba3c324ef6cc5a475c2e96e4; version=c948b5da6bbec742b433138e3e3f9537a85af2e5 <c41a9abd6ae31d130e8f332e7c8800c4c866234b

Published CVSS scores

7.1UbuntuCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
7.0Amazon LinuxCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
7.1NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-125Out-of-bounds Read

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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