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CVE-2026-50683

Windows DHCP Client Elevation of Privilege Vulnerability

HIGH
8
CVSS Score
Published: July 14, 2026 at 05:08 PM UTC
Updated: October 28, 2026 at 08:05 PM UTC
7 products affected across 1 vendorWindows Server 2016Windows Server 2019Windows Server 2012

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Severity
HIGH8
Exploit prediction
EPSS 0.6%
SSVC
No known exploit

Description

Heap-based buffer overflow in Windows DHCP Server allows an authorized attacker to elevate privileges over an adjacent network.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Windows 10 1607· Microsoft
95%
v < 10.0.14393.933910.0.14393.0
Affected range stops below 10.0.14393.9339, so it looks safe — our inference, not a vendor statement
Windows 10 1809· Microsoft
95%
v < 10.0.17763.902010.0.17763.0
Affected range stops below 10.0.17763.9020, so it looks safe — our inference, not a vendor statement
Windows Server 2012· Microsoft
95%
6.2.9200.06.3.9600.0r2
Affected range stops below 6.2.9200.26226, so it looks safe — our inference, not a vendor statement
Affected range stops below 6.3.9600.23291, so it looks safe — our inference, not a vendor statement
Windows Server 2016· Microsoft
95%
v < 10.0.14393.933910.0.14393.0
Affected range stops below 10.0.14393.9339, so it looks safe — our inference, not a vendor statement
Windows Server 2019· Microsoft
95%
v < 10.0.17763.902010.0.17763.0
Affected range stops below 10.0.17763.9020, so it looks safe — our inference, not a vendor statement
Windows Server 2022· Microsoft
95%
v < 10.0.20348.538610.0.20348.0
Affected range stops below 10.0.20348.5386, so it looks safe — our inference, not a vendor statement
Windows Server 2025· Microsoft
95%
v < 10.0.26100.3315810.0.26100.0
Affected range stops below 10.0.26100.33158, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

Vendor AdvisoryPatch
Source: cverecord
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50683

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8HIGH[email protected]
Attack Vector
ADJACENT_NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-122

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