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VulnerabilityPublished Updated

CVE-2026-69830: Microsoft Windows 10 Version 1607 · Race Condition

Affects Microsoft Windows 10 Version 1607Source CVE Database V5

0

Not known to be exploited · CVSS 8.1 High : upgrade to 10.0.14393.9612 soon.

Data as of 26 Oct 2026, 16:53 UTC

CVSS 3.1 base score
8.1High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.4% chance of exploitation in 30 days – higher than 41% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 10.0.14393.9612, 10.0.17763.9376, 6.2.9200.26434 +3
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 13 Oct 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

ProductAffectedFixed in
MicrosoftWindows 10 Version 1607Affected
  • >=10.0.14393.0 <10.0.14393.9612
Fixed in
  • 10.0.14393.9612
MicrosoftWindows 10 Version 1809Affected
  • >=10.0.17763.0 <10.0.17763.9376
Fixed in
  • 10.0.17763.9376
MicrosoftWindows Server 2012Affected
  • >=6.2.9200.0 <6.2.9200.26434
Fixed in
  • 6.2.9200.26434
MicrosoftWindows Server 2012 (Server Core installation)Affected
  • >=6.2.9200.0 <6.2.9200.26434
Fixed in
  • 6.2.9200.26434
MicrosoftWindows Server 2012 R2Affected
  • >=6.3.9600.0 <6.3.9600.23470
Fixed in
  • 6.3.9600.23470
MicrosoftWindows Server 2012 R2 (Server Core installation)Affected
  • >=6.3.9600.0 <6.3.9600.23470
Fixed in
  • 6.3.9600.23470

AI-suggested

An official fix is available from Microsoft. Users and administrators should apply the security updates provided by Microsoft as detailed in the vendor advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69830 to remediate this vulnerability.

Description

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows DHCP Server allows an unauthorized attacker to execute code over a network.

References

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