CVE-2026-68190

Disclosure or crash via malformed WPS IEs

Published Aug 10, 2026 · Updated Aug 10, 2026

Out-of-bounds reads in the Linux rtl8723bs driver allow physically proximate attackers to disclose data or crash systems via malformed Wi-Fi frames. The rtw_get_wps_ie() parser reads an IE length byte and compares WPS identifiers without first ensuring that the header and declared payload remain inside the frame buffer. Exposure requires rtl8723bs hardware with the driver loaded; malformed nearby wireless traffic can disclose kernel data or cause a kernel crash.

CVSS severity5.9
Medium
EPSS probability0.21%
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 driver allow physically proximate attackers to disclose data or crash systems via malformed Wi-Fi frames. The rtw_get_wps_ie() parser reads an IE length byte and compares WPS identifiers without first ensuring that the header and declared payload remain inside the frame buffer. Exposure requires rtl8723bs hardware with the driver loaded; malformed nearby wireless traffic can disclose kernel data or cause a kernel crash.

The record

CVE
CVE-2026-68190
Published
Aug 10, 2026
Updated
Aug 10, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-125, T1499.004
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 10, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 10, 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=4.12
  2. Affected versionversion=554c0a3abf216c991c5ebddcdb2c08689ecd290b <0e95ff792ae0aa6fbad9455943e9e1e4062670e9
  3. Affected versionversion=554c0a3abf216c991c5ebddcdb2c08689ecd290b <23c31f107b4f8f420a754a45d12599bdb78f9bb8
  4. Affected versionversion=554c0a3abf216c991c5ebddcdb2c08689ecd290b <630fdca3f2437fee3ffd437c4b646ccf84c7be87
  5. Affected versionversion=554c0a3abf216c991c5ebddcdb2c08689ecd290b <875479f18835ac11e21a83e88f3d4dc7ccdcd0c4
  6. Affected versionversion=554c0a3abf216c991c5ebddcdb2c08689ecd290b <b9d9a4cd2e59df7281992a076464d2536e80c674

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=4.12; version=554c0a3abf216c991c5ebddcdb2c08689ecd290b <0e95ff792ae0aa6fbad9455943e9e1e4062670e9; version=554c0a3abf216c991c5ebddcdb2c08689ecd290b <23c31f107b4f8f420a754a45d12599bdb78f9bb8; version=554c0a3abf216c991c5ebddcdb2c08689ecd290b <630fdca3f2437fee3ffd437c4b646ccf84c7be87; version=554c0a3abf216c991c5ebddcdb2c08689ecd290b <875479f18835ac11e21a83e88f3d4dc7ccdcd0c4; version=554c0a3abf216c991c5ebddcdb2c08689ecd290b <b9d9a4cd2e59df7281992a076464d2536e80c674

Published CVSS scores

5.9Red HatCVSS:3.1/AV:A/AC:H/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.

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)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-125Out-of-bounds Read
T1499.004Application or System Exploitation

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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