CVE-2026-83855 | BDVDB-2026-387331 Detail

MicrosoftWindows 11 version 23H2

Description#

Integer underflow (wrap or wraparound) in Windows WLAN Service allows an unauthorized attacker to deny service over a network.

Per CVSS v3.1: confidentiality impact none, integrity impact none, availability impact high. Attack vector: network.

No public exploit known

7.5 High

1.3%, Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 71.2.

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Not classified

No specific action is recorded in the source data. Check the references for vendor guidance.

Not available

7.5 High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C

Not available

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).