How severe is CVE-2024-26235?

CVE-2024-26235 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2024-26235 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (43rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-26235?

CVE-2024-26235 affects Microsoft Windows Server 2022 23h2. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2024-26235?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2024-26235 have an EU (EUVD) identifier?

Yes. CVE-2024-26235 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-23511.

When was CVE-2024-26235 published?

CVE-2024-26235 was published on 2024-04-09 and last updated on 2026-06-17.

CVE-2024-26235

CVE-2024-26235 is a high-severity vulnerability in Microsoft Windows Server 2022 23h2 with a CVSS 3.x base score of 7.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-306.

Key facts

Severity: High (CVSS 3.x base score 7.8)
EPSS exploit prediction: 1% (43rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-23511
Weakness: CWE-306
Affected product: Microsoft Windows Server 2022 23h2
Published: 2024-04-09
Last modified: 2026-06-17

Description

Windows Update Stack Elevation of Privilege Vulnerability

Frequently asked questions

What is CVE-2024-26235?: Windows Update Stack Elevation of Privilege Vulnerability
How severe is CVE-2024-26235?: CVE-2024-26235 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2024-26235 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (43rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-26235?: CVE-2024-26235 affects Microsoft Windows Server 2022 23h2. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2024-26235?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2024-26235 have an EU (EUVD) identifier?: Yes. CVE-2024-26235 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-23511.
When was CVE-2024-26235 published?: CVE-2024-26235 was published on 2024-04-09 and last updated on 2026-06-17.

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-26235

Affected products (1)

cpe:2.3:o:microsoft:windows_server_2022_23h2:*:*:*:*:*:*:*:*

More vulnerabilities in Microsoft Windows Server 2022 23h2

CVE-2025-49708 — Critical (CVSS 9.9): Use after free in Microsoft Graphics Component allows an authorized attacker to elevate privileges over a network.
CVE-2026-41096 — Critical (CVSS 9.8): Heap-based buffer overflow in Microsoft Windows DNS allows an unauthorized attacker to execute code over a network.
CVE-2026-41089 — Critical (CVSS 9.8): Stack-based buffer overflow in Windows Netlogon allows an unauthorized attacker to execute code over a network.
CVE-2026-33824 — Critical (CVSS 9.8): Double free in Windows IKE Extension allows an unauthorized attacker to execute code over a network.
CVE-2025-60724 — Critical (CVSS 9.8): Heap-based buffer overflow in Microsoft Graphics Component allows an unauthorized attacker to execute code over a…
CVE-2025-59287 — Critical (CVSS 9.8): Deserialization of untrusted data in Windows Server Update Service allows an unauthorized attacker to execute code over…

All CVEs affecting Microsoft Windows Server 2022 23h2 →

Other CWE-306 (Missing Authentication for Critical Function) vulnerabilities

CVE-2026-54309 — Critical (CVSS 10.0): n8n is an open source workflow automation platform. Prior to 2.25.7 and 2.26.2, when @n8n/mcp-browser is run in HTTP…
CVE-2026-50242 — Critical (CVSS 10.0): In JetBrains Hub before 2026.1.13757, 2025.3.148033, 2025.2.148048, 2025.1.148120, 2024.3.148430, 2024.2.148429…
CVE-2026-49257 — Critical (CVSS 10.0): mcp-pinot is a Python-based Model Context Protocol (MCP) server for interacting with Apache Pinot. In versions 3.0.1…
CVE-2026-46846 — Critical (CVSS 10.0): Vulnerability in the Oracle WebCenter Portal product of Oracle Fusion Middleware (component: Security Framework).…
CVE-2026-46803 — Critical (CVSS 10.0): Vulnerability in the Oracle WebCenter Portal product of Oracle Fusion Middleware (component: Security Framework).…
CVE-2026-46800 — Critical (CVSS 10.0): Vulnerability in the Oracle WebCenter Sites product of Oracle Fusion Middleware (component: WebCenter Sites).…

Browse all CWE-306 (Missing Authentication for Critical Function) vulnerabilities →