CSIRTS // UNIFIED SECURITY ADVISORY FEEDSYS ● ONLINE · POWERED BY INTELFUSIONS.COM

← Back to feed

CVE-2025-68304: Bluetooth: hci_core: lookup hci_conn on RX path on protocol side

highCVSS 7CVE-2025-68304

CSIRTS triage

product: Linux kernel BluetoothOther
What
Bluetooth hci_core improper handling of HCI connection lookup on RX path.
Who is affected
Linux systems with Bluetooth enabled processing incoming HCI connections.
Urgency
High; unexloited but affects Bluetooth core connection handling; CVSS 7.0 indicates significant risk.
Action
Apply kernel patch for proper hci_conn lookup on the protocol-side RX path.

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

⚡ Watch Linux kernel Bluetooth

Get an email when a new Linux kernel Bluetooth advisory drops — max one per day, one-click unsubscribe.

Details

Source
Microsoft Security Response Center (INTL · vendor-psirt · site)
Severity
high — CVSS 7
Published
2026-08-06
Exploitation
Not in CISA KEV at last sync

Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-68304

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-2025-68304coverage & 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.

More from Microsoft Security Response Center