Cyber Resilience

CVE-2025-50173

High

Published: 12 August 2025

Published
12 August 2025
Modified
19 August 2025
KEV Added
Patch
CVSS Score v3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.0053 67.9th percentile
Risk Priority 16 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2025-50173 is a high-severity Weak Authentication (CWE-1390) vulnerability in Microsoft Windows Server 2008. Its CVSS base score is 7.8 (High).

Operationally, ranked in the top 32.1% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

Weak authentication in Windows Installer allows an authorized attacker to elevate privileges locally.

CWE(s)

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

microsoft
windows 10 1507
≤ 10.0.10240.21100 · ≤ 10.0.10240.21100
microsoft
windows 10 1607
≤ 10.0.14393.8330 · ≤ 10.0.14393.8330
microsoft
windows 10 1809
≤ 10.0.17763.7678 · ≤ 10.0.17763.7678
microsoft
windows 10 21h2
≤ 10.0.19044.6216
microsoft
windows 10 22h2
≤ 10.0.19045.6216
microsoft
windows 11 22h2
≤ 10.0.22621.5768
microsoft
windows 11 23h2
≤ 10.0.22631.5768
microsoft
windows 11 24h2
≤ 10.0.26100.4851
microsoft
windows server 2008
all versions, r2
microsoft
windows server 2012
all versions, r2
+5 more product configuration(s) — see NVD for full list

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-1390

Helps detect exploitation of weak authentication mechanisms by notifying of previous unauthorized logons.

addresses: CWE-1390

The IA policy requires strong authentication methods, reducing use of weak authentication.

addresses: CWE-1390

Enforces dynamic, context-aware authentication that mitigates weak static authentication by increasing requirements based on risk or conditions.

addresses: CWE-1390

Enforces authentication for users, reducing the viability of weak authentication mechanisms.

addresses: CWE-1390

Requires authentication mechanisms to meet applicable standards and guidelines, preventing weak authentication.

References