Cyber Resilience

CVE-2024-26254

Microsoft Windows 10 1809 ≤ 10.0.17763.5696

Published
09 April 2024
Modified
17 June 2026
Patch / advisory
CVSS Score v3.1 7.5
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS Score 0.031 87th percentile
Risk Priority 65 floored blend · peak EPSS

Summary

CVE-2024-26254 is a high-severity Untrusted Pointer Dereference (CWE-822) vulnerability in Microsoft Windows 10 1809. Its CVSS base score is 7.5 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploitation for Privilege Escalation (T1068); ranked in the top 13% 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 SI-10 (Information Input Validation) — see the control section below for these in your framework.

Deeper analysis AI-assisted summary

Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.

Microsoft Virtual Machine Bus (VMBus) is affected by a denial-of-service vulnerability tracked as CVE-2024-26254. The flaw carries a CVSS 3.1 score of 7.5 and is associated with CWE-822, allowing an unauthenticated network attacker to disrupt availability without any user interaction or privileges.

An attacker with network access can send crafted traffic to the VMBus component and trigger a denial-of-service condition that impacts the confidentiality or integrity of no data but renders the affected service unavailable. The attack requires no authentication and can be performed remotely over the network.

Microsoft has published guidance for the issue at the MSRC update guide, indicating that patches or configuration changes are available to address the vulnerability. The associated EPSS score has remained flat at 0.0653 with no material increase since disclosure.

EU & UK References

Vulnerability Data

Microsoft Virtual Machine Bus (VMBus) Denial of Service Vulnerability

CWE(s)

Related Threats

MITRE ATT&CK Enterprise Techniques

T1068 Exploitation for Privilege Escalation Privilege Escalation
Adversaries may exploit software vulnerabilities in an attempt to elevate privileges.
T1190 Exploit Public-Facing Application Initial Access
Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.
T1203 Exploitation for Client Execution Execution
Adversaries may exploit software vulnerabilities in client applications to execute code.
T1210 Exploitation of Remote Services Lateral Movement
Adversaries may exploit remote services to gain unauthorized access to internal systems once inside of a network.
T1212 Exploitation for Credential Access Credential Access
Adversaries may exploit software vulnerabilities in an attempt to collect credentials.
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2024-21338Same product: Microsoft Windows 10 1809
CVE-2024-38185Same product: Microsoft Windows 10 1809
CVE-2024-38187Same product: Microsoft Windows 10 1809
CVE-2024-43629Same product: Microsoft Windows 10 1809
CVE-2024-43624Same product: Microsoft Windows 10 1809
CVE-2025-27739Same product: Microsoft Windows 10 1809
CVE-2024-43529Same product: Microsoft Windows 10 21H2
CVE-2024-43516Same product: Microsoft Windows 10 1809
CVE-2024-37969Same product: Microsoft Windows 10 1809
CVE-2023-36033Same product: Microsoft Windows 10 1809

Affected Assets

microsoft
windows 10 1809
≤ 10.0.17763.5696
microsoft
windows 10 21h2
≤ 10.0.19044.4291
microsoft
windows 10 22h2
≤ 10.0.19045.4291
microsoft
windows 11 21h2
≤ 10.0.22000.2899
microsoft
windows 11 22h2
≤ 10.0.22621.3447
microsoft
windows 11 23h2
≤ 10.0.22631.3447
microsoft
windows server 2019
≤ 10.0.17763.5696
microsoft
windows server 2022
≤ 10.0.20348.2402
microsoft
windows server 2022 23h2
≤ 10.0.25398.830

Mitigating Controls

Mitigating Controls (NIST 800-53 r5) AI

Developer testing and evaluation can discover instances where untrusted data is turned into a pointer and dereferenced.

Validating all information inputs stops untrusted values from being accepted and converted into dereferenceable pointers.

Memory-protection mechanisms limit the damage from an invalid pointer dereference without stopping the root coding flaw.

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 practices directly prevent introduction of untrusted pointer handling during development.

DE.CM-09 partial match
prevents

Runtime monitoring of software and data can detect adverse events resulting from exploitation of the weakness.

ID.RA-01 partial match
prevents

Vulnerability identification processes can discover instances of this weakness via code review or scanning.

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 can detect pointer-dereference flaws before release.

prevents

Secure development lifecycle includes pointer-safety practices that reduce untrusted pointer dereference risk.

prevents

Application security requirements can mandate validation of pointers obtained from untrusted sources.

prevents

Secure architecture principles discourage direct use of untrusted values as pointers.

prevents

Secure coding standards explicitly forbid dereferencing pointers derived from untrusted input.

References