CVE-2026-83838
HIGH severity · CVSS 8 · CWE-191
8CVSS HIGH
Summary
Integer underflow (wrap or wraparound) in Windows Bluetooth A2DP driver allows an authorized attacker to elevate privileges over an adjacent network.
Impact & exploitability
Attack vectorAdjacent
Attack complexityLow
Privileges requiredLow
User interactionNone
Confidentiality impactHigh
Integrity impactHigh
Availability impactHigh
Exploit probability (EPSS)1%
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected products we track (4)
Recommendation
Apply the vendor fix promptly. Open any affected product above for its exact safe version.
Official patch: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-83838 ↗