Cyber Resilience

CVE-2026-58535

Microsoft Windows 10 1607 ≤ 10.0.14393.9339

Published
14 July 2026
Modified
22 July 2026
Patch / advisory
CVSS Score v3.1 6.5
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
EPSS Score 0.0087 56th percentile
Risk Priority 52 floored blend · peak EPSS

Summary

CVE-2026-58535 is a medium-severity Use of Uninitialized Resource (CWE-908) vulnerability in Microsoft Windows 10 1607. Its CVSS base score is 6.5 (Medium).

Operationally, exploitation aligns with the MITRE ATT&CK technique OS Credential Dumping (T1003); ranked in the top 44% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified map to SA-11 (Developer Testing and Evaluation) and SA-15 (Development Process, Standards, and Tools) — see the control section below for these in your framework.

EU & UK References

Vulnerability Data

Use of uninitialized resource in Windows RDP allows an unauthorized attacker to disclose information over a network.

CWE(s)

Related Threats

MITRE ATT&CK Enterprise Techniques

T1003 OS Credential Dumping Credential Access
Adversaries may attempt to dump credentials to obtain account login and credential material, normally in the form of a hash or a clear text password.
T1212 Exploitation for Credential Access Credential Access
Adversaries may exploit software vulnerabilities in an attempt to collect credentials.
T1552 Unsecured Credentials Credential Access
Adversaries may search compromised systems to find and obtain insecurely stored credentials.
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2026-50376Same product: Microsoft Windows 10 1607
CVE-2026-50690Same product: Microsoft Windows 10 1607
CVE-2026-49801Same product: Microsoft Windows 10 1607
CVE-2026-58546Same product: Microsoft Windows 10 1607
CVE-2026-55003Same product: Microsoft Windows 10 1607
CVE-2026-57083Same product: Microsoft Windows 10 1607
CVE-2026-56190Same product: Microsoft Windows 10 1607
CVE-2026-57084Same product: Microsoft Windows 10 1607
CVE-2026-50455Same product: Microsoft Windows 10 1607
CVE-2026-57982Same product: Microsoft Windows 10 1607

Affected Assets

microsoft
windows 10 1607
≤ 10.0.14393.9339 · ≤ 10.0.14393.9339
microsoft
windows 10 1809
≤ 10.0.17763.9020 · ≤ 10.0.17763.9020
microsoft
windows 10 21h2
≤ 10.0.19044.7548
microsoft
windows 10 22h2
≤ 10.0.19045.7548
microsoft
windows 11 24h2
≤ 10.0.26100.8875
microsoft
windows 11 25h2
≤ 10.0.26200.8875
microsoft
windows 11 26h1
≤ 10.0.28000.2525
microsoft
windows server 2012
all versions, r2
microsoft
windows server 2016
≤ 10.0.14393.9339
microsoft
windows server 2019
≤ 10.0.17763.9020
+2 more product configuration(s) — see NVD for full list

Mitigating Controls

Mitigating Controls (NIST 800-53 r5) AI

Developer testing and evaluation (including static analysis) can find uses of uninitialized resources after they are coded.

Requiring documented development standards and tools can mandate initialization checks and safe patterns that stop the weakness from being introduced.

Engineering principles can require explicit resource initialization before use, structurally avoiding uninitialized access.

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.PS-06 mostly match
prevents

Secure SDLC activities such as static analysis and code review directly prevent use of uninitialized resources while also addressing many other weaknesses.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

finds

Security testing in development and acceptance can detect uninitialized resource usage through dynamic analysis and fuzzing.

prevents

Secure development life cycle mandates initialization checks and static analysis that can catch uninitialized resource use.

prevents

Application security requirements can specify mandatory initialization of variables and resources before use.

prevents

Secure system architecture and engineering principles include defensive coding practices that prevent use of uninitialized memory or objects.

prevents

Secure coding standards directly require explicit initialization of all variables and resources, substantially mitigating CWE-908.

References