Security Resilience

CVE-2023-21712

Race Condition in Microsoft Windows Server 2012 r2

Published
27 April 2023
Modified
21 November 2024
Patch / advisory
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 0.0099 62th percentile
Risk Priority 65 floored blend · peak EPSS

CVSS and EPSS are reproduced from their sources (NVD, FIRST EPSS). Risk Priority is our own derived reading, not an NVD score.

Summary

CVE-2023-21712 is a high-severity Race Condition (CWE-362) vulnerability in Microsoft Windows Server 2012. Its CVSS base score is 8.1 (High).

Operationally, ranked in the top 38% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

OWASP Top 10 for Web (2025)

EU & UK References

Vulnerability Data

Windows Point-to-Point Tunneling Protocol Remote Code Execution Vulnerability

CWE(s)

Related Threats

CVEs Like This One

CVE-2023-28232Same product: Microsoft Windows 10 1607
CVE-2023-35361Same product: Microsoft Windows 10 1607
CVE-2022-26904Same product: Microsoft Windows 10 1607
CVE-2023-36884Same product: Microsoft Windows 10 1607
CVE-2023-21535Same product: Microsoft Windows 10 1607
CVE-2024-38191Same product: Microsoft Windows 10 1607
CVE-2023-36405Same product: Microsoft Windows 10 1607
CVE-2023-21679Same product: Microsoft Windows 10 1607
CVE-2023-21546Same product: Microsoft Windows 10 1607
CVE-2026-23668Same product: Microsoft Windows 10 1607

Affected Assets

microsoft
windows 10
≤ 10.0.10240.19562
microsoft
windows 10 1607
≤ 10.0.14393.5501
microsoft
windows 10 1809
≤ 10.0.17763.3650
microsoft
windows 10 20h2
≤ 10.0.19042.2251
microsoft
windows 10 21h1
≤ 10.0.19043.2251
microsoft
windows 10 21h2
≤ 10.0.19044.2251
microsoft
windows 10 22h2
≤ 10.0.19045.2486
microsoft
windows 11 21h2
≤ 10.0.22000.1219
microsoft
windows 11 22h2
≤ 10.0.22000.819
microsoft
windows 8.1
all versions
+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-362

Accurate timestamps from internal clocks enable detection of race conditions by providing reliable event ordering in audit logs.

addresses: CWE-362

Coordination of concurrent security activities reduces the probability that shared resources will be accessed simultaneously without proper synchronization.

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.

blocks

A.8.25 mandates secure SDLC practices (secure coding guidelines, security requirements, checkpoints, testing including code scans/penetration tests, developer training) that reach race conditions in concurrent code, but only as one slice of a broad requirement whose implementation scope and rigour are left to the organisation.

blocks

A.8.26 explicitly lists resilience against malicious attacks including SQL injections and input validation as application security requirements to identify/address; race conditions are a similar class of timing-based concurrency flaw that can be mitigated by requirements for proper synchronization/locking, but this is only one slice of the broad CWE-362 class (most instances arise in low-level shared-memory or TOCTOU scenarios not named here).

blocks

Secure architecture principles require proper synchronization and resource isolation, addressing the root cause of CWE-362.

prevents

Secure coding standards explicitly forbid unsafe concurrent access patterns and mandate atomic operations or locks.

finds

Security testing can detect race conditions, but does not prevent them at design or coding time.

Hardening callouts derived

DISA STIG baselines are authored against specific weaknesses. Where this CVE cites a broad weakness class, the mapping is not asserted at that abstraction (owner ruling, 2026-09-25: grade only at Base and below), so no rule is shown here rather than a rule shown against the wrong grain.

  • No fine-grained STIG row for CWE-362, a class-level weakness, and none of its children carries one either.

References