Cyber Resilience

CVE-2023-21548

Microsoft Windows 10 1809

Published
10 January 2023
Modified
21 November 2024
CVSS Score v3.1 8.1
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.011 62th percentile
Risk Priority 62 floored blend · peak EPSS

Summary

CVE-2023-21548 is a high-severity Sensitive Data Storage in Improperly Locked Memory (CWE-591) vulnerability in Microsoft Windows 10 1809. Its CVSS base score is 8.1 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Unsecured Credentials (T1552); ranked in the top 38% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability Data

Windows Secure Socket Tunneling Protocol (SSTP) Remote Code Execution Vulnerability

CWE(s)
CWE-591NVD-CWE-noinfo

Related Threats

MITRE ATT&CK Enterprise Techniques

T1552 Unsecured Credentials Credential Access
Adversaries may search compromised systems to find and obtain insecurely stored credentials.
attack.mitre.org →
T1552.001 Credentials In Files Credential Access
Adversaries may search local file systems and remote file shares for files containing insecurely stored credentials.
attack.mitre.org →
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2023-28220Same product: Microsoft Windows 10 1607
CVE-2023-28219Same product: Microsoft Windows 10 1607
CVE-2023-28238Same product: Microsoft Windows 10 1607
CVE-2023-23414Same product: Microsoft Windows 10 1607
CVE-2023-28229Same product: Microsoft Windows 10 1607
CVE-2023-28283Same product: Microsoft Windows 10 1607
CVE-2023-28236Same product: Microsoft Windows 10 1607
CVE-2023-35340Same product: Microsoft Windows 10 1607
CVE-2023-28224Same product: Microsoft Windows 10 1607
CVE-2023-36005Same product: Microsoft Windows 10 1607

Affected Assets

microsoft
windows 10 1607
all versions
microsoft
windows 10 1809
all versions
microsoft
windows 10 20h2
all versions
microsoft
windows 10 21h2
all versions
microsoft
windows 10 22h2
all versions
microsoft
windows 11 21h2
all versions
microsoft
windows 11 22h2
all versions
microsoft
windows 7
all versions
microsoft
windows 8.1
all versions
microsoft
windows rt 8.1
all versions
+5 more product configuration(s) — see NVD for full list

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)

—

Detect
Catch it (NIST detect / respond)

—

Harden
Shrink the surface (DISA STIG)
  • 1 hardening rule · 1 OS baseline
Validate
Prove the fix (OWASP ASVS)

—

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.DS-01 partial match
prevents

PR.DS-01 encryption of data-at-rest can protect swapped pages but does not stop improper memory locking, addressing only one exposure facet of the weakness.

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.

A.8.29 Security testing in development and acceptance mostly match
finds

Security testing can discover unlocked sensitive buffers, but does not itself implement the locking mechanism.

A.8.24 Use of cryptography partial match
degrades

Cryptographic controls can reduce exposure of sensitive data even if it is paged, but do not directly enforce memory locking.

A.8.28 Secure coding partial match
prevents

Secure-coding standards can mandate use of locked-memory APIs, directly preventing the weakness.

A.8.12 Data leakage prevention none match
mitigates

DLP can detect leakage of sensitive data from swap, yet does not prevent the data from being written there.

Hardening callouts derived

Configuration rules from DISA STIG baselines that bear on weaknesses of the type cited by this CVE. Each rule is shown with the relationship its mapping actually records, against the CWE it was authored against. Derived via CVE→CWE over `controls_xwalks` (authoritative rows only; rows rated `none` are excluded).

Oracle Linux 8 (1 rule)
  • V-248525 All OL 8 local disk partitions must implement cryptographic mechanisms to prevent unauthorized disclosure or modification of all information that requires at-rest protection. prevents CWE-591

References