CVE-2026-64441: staging: rtl8723bs: fix OOB reads in rtw_get_sec_ie(), rtw_get_wapi_ie(), and rtw_get_wps_attr()

CSIRTS triage

What

This vulnerability fixes out-of-bounds reads in the rtl8723bs driver.

Who is affected

Deployments using the rtl8723bs staging driver.

Urgency

Remediation is critical to prevent potential data leaks or crashes.

Action

Apply the fix for CVE-2026-64441.

AI-assisted analysis generated from the source advisory — verify against the original.

Details

Source

Microsoft Security Response Center (INTL · vendor-psirt · site)

Severity

medium — CVSS 5.5

Published

2026-07-14

Exploitation

Not in CISA KEV at last sync

Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-64441

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

• Low exploitation riskCVE-2026-644410.26% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 17% of all scored CVEs.

Referenced CVEs

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

• unknownDSA-6405-1 linux - security updatedebian
• highCVE-2026-64441: In the Linux kernel, the following vulnerability has been resolved: staging: rtl8723bs: fix OO…nvd

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