Dashboard / CVE-2026-70091

CVE-2026-70091

MEDIUM
MEDIUM Priority: 0.04 BB Relevance: 62/100
Published: 2026-09-08 Modified: 2026-10-26 First seen: 2026-10-29 Status: active

Attack Surface

Network No Auth No Interaction

CVSS Vector Breakdown

AV: Network
AC: High
PR: None
UI: None
S: Unchanged
C: None
I: None
A: High

Description

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows DNS allows an unauthorized attacker to deny service over a network.

Weakness Classification (1)

Affected Software (10)

VendorProductVersion
microsoft windows_10_1607 < 10.0.14393.9512
microsoft windows_10_1607 < 10.0.14393.9512
microsoft windows_10_1809 < 10.0.17763.9245
microsoft windows_10_1809 < 10.0.17763.9245
microsoft windows_server_2012 -
microsoft windows_server_2012 r2
microsoft windows_server_2016 < 10.0.14393.9512
microsoft windows_server_2019 < 10.0.17763.9245
microsoft windows_server_2022 < 10.0.20348.5622
microsoft windows_server_2025 < 10.0.26100.33438

References & Advisories (1)

Bug Bounty Relevance

62 / 100
✓ Network accessible
✓ No authentication
✓ No user interaction

CVSS Score

5.9 / 10.0 v3.1
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C

EPSS — Exploitation Probability

0.66%
Raw Score 0.006550
Percentile 51.3%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00655
2026-10-28
0.00655

Intelligence Sources

mitre ref →

External Links