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CVE-2022-50233: Bluetooth: eir: Fix using strlen with hdev->{dev_name,short_name}

mediumCVSS 5.5CVE-2022-50233

CSIRTS triage

vendor: Linuxproduct: BluetoothMemory corruption
What
Improper use of strlen with fixed-size Bluetooth device name fields can cause buffer overruns.
Who is affected
Systems with Bluetooth functionality enabled in the Linux kernel.
Urgency
Medium severity (CVSS 5.5) buffer overrun; patch during regular maintenance cycle.
Action
Update to the latest kernel version with proper string length handling in Bluetooth EIR parsing.

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

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Details

Source
Microsoft Security Response Center (INTL · vendor-psirt · site)
Severity
medium — CVSS 5.5
Published
2026-08-06
Exploitation
Not in CISA KEV at last sync

Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-50233

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.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2022-50233coverage & exploitation statusNVD · CVE.org

Recent advisories for Bluetooth

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

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