CVE-2025-68254

Kernel panic via unchecked ESR IE offsets

Published Dec 16, 2025 · Updated Dec 16, 2025

Out-of-bounds reads in the Linux rtl8723bs OnBeacon path allow physically proximate attackers to trigger a kernel panic via a malformed beacon. OnBeacon reads two bytes beyond an Extended Supported Rates information element without confirming that either offset remains inside the received frame. Exploitation requires a system using the rtl8723bs wireless driver to process the crafted beacon, after which the unchecked read can crash the kernel.

CVSS severity7.1
High
EPSS probability0.28%
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 reads in the Linux rtl8723bs OnBeacon path allow physically proximate attackers to trigger a kernel panic via a malformed beacon. OnBeacon reads two bytes beyond an Extended Supported Rates information element without confirming that either offset remains inside the received frame. Exploitation requires a system using the rtl8723bs wireless driver to process the crafted beacon, after which the unchecked read can crash the kernel.

The record

CVE
CVE-2025-68254
Published
Dec 16, 2025
Updated
Dec 16, 2025
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1499.004
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 16, 2025CVE publishedPublication date reported by the CVE source.
  2. Dec 16, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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

  1. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <38292407c2bb5b2b3131aaace4ecc7a829b40b76
  2. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <502ddcc405b69fa92e0add6c1714d654504f6fd7
  3. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <bf323db1d883c209880bd92f3b12503e3531c3fc
  4. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <d1ab7f9cee22e7b8a528da9ac953e4193b96cda5

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <38292407c2bb5b2b3131aaace4ecc7a829b40b76; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <502ddcc405b69fa92e0add6c1714d654504f6fd7; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <bf323db1d883c209880bd92f3b12503e3531c3fc; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <d1ab7f9cee22e7b8a528da9ac953e4193b96cda5

Published CVSS scores

7.1kernel.orgCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/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.

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No observations available

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

Weakness, pattern, technique

T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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