CVE-2026-80764: Bluetooth: hci_event: fix LE list UAF on reset

mediumCVSS 4.1CVE-2026-80764

Details

Source: Microsoft Security Response Center (INTL · vendor-psirt · site)
Severity: medium — CVSS 4.1
Published: 2026-09-08
Exploitation: Not in CISA KEV at last sync

Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-80764

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-2026-807640.17% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 7% of all EPSS-scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-80764	coverage & exploitation status	NVD · CVE.org

Same CVEs, other sources

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

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.

unknownCVE-2026-47773: ArduinoBLE enables Bluetooth Low Energy connectivity on certain Arduino models. Versions prior…nvd · 2026-09-11
unknownCVE-2026-89583: In the Linux kernel, the following vulnerability has been resolved: Bluetooth: eir: Fix OOB re…nvd · 2026-09-11
unknownCVE-2026-89569: In the Linux kernel, the following vulnerability has been resolved: Bluetooth: RFCOMM: seriali…nvd · 2026-09-11
mediumCVE-2026-15460: The Bluetooth Classic (BR/EDR) L2CAP receive handler bt_l2cap_br_recv() in subsys/bluetooth/ho…nvd · 2026-09-09
highCVE-2026-80914: In the Linux kernel, the following vulnerability has been resolved: Bluetooth: ISO: fix use-af…nvd · 2026-09-09
lowCVE-2026-28623: In writeToParcel of BleRssiRangingCapabilities.java, there is a possible way to obtain the Blu…nvd · 2026-09-08