Cyber Resilience

CVE-2026-62702

Memory Safety in Microsoft Windows 10 21H2 ≤ 10.0.19044.7663

Published
11 August 2026
Modified
13 August 2026
Patch / advisory
CVSS Score v3.1 6.8
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H
EPSS Score 0.0094 59th percentile
Risk Priority 52 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-2026-62702 is a medium-severity NULL Pointer Dereference (CWE-476) vulnerability in Microsoft Windows 10 21H2. Its CVSS base score is 6.8 (Medium).

Operationally, exploitation aligns with the MITRE ATT&CK technique Service Stop (T1489); ranked in the top 41% 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.

OWASP Top 10 for Web (2025)

EU & UK References

Vulnerability Data

Null pointer dereference in Windows Graphics Kernel allows an unauthorized attacker to deny service over a network.

CWE(s)

Related Threats

MITRE ATT&CK Enterprise Techniques

T1489 Service Stop Impact
Adversaries may stop or disable services on a system to render those services unavailable to legitimate users.
T1499 Endpoint Denial of Service Impact
Adversaries may perform Endpoint Denial of Service (DoS) attacks to degrade or block the availability of services to users.
T1499.004 Application or System Exploitation Impact
Adversaries may exploit software vulnerabilities that can cause an application or system to crash and deny availability to users.
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2026-24293Same product: Microsoft Windows 10 21H2
CVE-2026-56168Same product: Microsoft Windows 10 21H2
CVE-2025-62463Same product: Microsoft Windows 10 21H2
CVE-2026-77489Same product: Microsoft Windows 10 21H2
CVE-2026-59132Same product: Microsoft Windows 10 21H2
CVE-2026-34339Same product: Microsoft Windows 10 21H2
CVE-2026-42903Same product: Microsoft Windows 10 21H2
CVE-2026-32071Same product: Microsoft Windows 10 21H2
CVE-2025-24997Same product: Microsoft Windows 10 21H2
CVE-2026-40413Same product: Microsoft Windows 10 21H2

Affected Assets

microsoft
windows 10 21h2
≤ 10.0.19044.7663 · ≤ 10.0.19044.7663 · ≤ 10.0.19044.7663
microsoft
windows 10 22h2
≤ 10.0.19045.7663 · ≤ 10.0.19045.7663 · ≤ 10.0.19045.7663
microsoft
windows 11 23h2
≤ 10.0.22631.7517 · ≤ 10.0.22631.7517
microsoft
windows 11 24h2
≤ 10.0.26100.9106 · ≤ 10.0.26100.9106
microsoft
windows 11 25h2
≤ 10.0.26200.9106 · ≤ 10.0.26200.9106
microsoft
windows 11 26h1
≤ 10.0.28000.2704 · ≤ 10.0.28000.2704
microsoft
windows server 2022
≤ 10.0.20348.5440
microsoft
windows server 2025
≤ 10.0.26100.33222

Mitigating Controls

Mitigating Controls (NIST 800-53 r5) AI

Developer testing and evaluation (including static analysis) directly finds null-dereference bugs before deployment.

Documented development standards and tools can enforce null-safety rules and safe pointer usage.

Engineering principles can mandate defensive coding such as explicit null checks before dereference.

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 partial match
prevents

Secure SDLC practices (static analysis, code review, safe coding standards) directly prevent NULL dereference bugs during development.

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.

prevents

Secure SDLC mandates defensive coding practices that can prevent NULL dereferences.

prevents

Application security requirements can specify input validation and pointer-safety rules.

prevents

Secure architecture principles encourage defensive design that avoids unsafe pointer use.

prevents

Secure coding standards directly require NULL-pointer checks and safe dereference patterns.

finds

Security testing can detect NULL dereference defects before release.

References