CVE-2025-59287
criticalpriority · act · 90OT risk · criticalKEV · exploitedEPSS 1.000 · 100 %ileexploit · weaponizedDEEUNLRUUSadded 2025-10-24remediate by 2025-11-14
required action Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
EPSS · scored 2026-10-23
Microsoft Windows Server Update Service (WSUS) Deserialization of Untrusted Data Vulnerability
Deserialization of untrusted data in Windows Server Update Service allows an unauthorized attacker to execute code over a network.
remediations
Vendor fix, mitigation, or workaround guidance, as published by each source.
A vendor fix is available.
- FixedWindows Server 2012msrc_csaf
6.2.9200.25728:Security Update:https://support.microsoft.com/help/5070887
https://support.microsoft.com/help/5070887 - FixedWindows Server 2012 (Server Core installation)msrc_csaf
6.2.9200.25728:Security Update:https://support.microsoft.com/help/5070887
https://support.microsoft.com/help/5070887 - FixedWindows Server 2012 R2msrc_csaf
6.3.9600.22826:Security Update:https://support.microsoft.com/help/5070886
https://support.microsoft.com/help/5070886 - FixedWindows Server 2012 R2 (Server Core installation)msrc_csaf
6.3.9600.22826:Security Update:https://support.microsoft.com/help/5070886
https://support.microsoft.com/help/5070886 - FixedWindows Server 2016msrc_csaf
10.0.14393.8524:Security Update:https://support.microsoft.com/help/5070882
https://support.microsoft.com/help/5070882 - FixedWindows Server 2016 (Server Core installation)msrc_csaf
10.0.14393.8524:Security Update:https://support.microsoft.com/help/5070882
https://support.microsoft.com/help/5070882 - FixedWindows Server 2019msrc_csaf
10.0.17763.7922:Security Update:https://support.microsoft.com/help/5070883
https://support.microsoft.com/help/5070883 - FixedWindows Server 2019 (Server Core installation)msrc_csaf
10.0.17763.7922:Security Update:https://support.microsoft.com/help/5070883
https://support.microsoft.com/help/5070883 - FixedWindows Server 2022msrc_csaf
10.0.20348.4297:Security Update:https://support.microsoft.com/help/5070884
https://support.microsoft.com/help/5070884 - FixedWindows Server 2022 (Server Core installation)msrc_csaf
10.0.20348.4297:Security Update:https://support.microsoft.com/help/5070884
https://support.microsoft.com/help/5070884 - FixedWindows Server 2022, 23H2 Edition (Server Core installation)msrc_csaf
10.0.25398.1916:Security Update:https://support.microsoft.com/help/5070879
https://support.microsoft.com/help/5070879 - FixedWindows Server 2025msrc_csaf
10.0.26100.6905:Security Update:https://support.microsoft.com/help/5070881
https://support.microsoft.com/help/5070881 - FixedWindows Server 2025 (Server Core installation)msrc_csaf
10.0.26100.6905:Security Update:https://support.microsoft.com/help/5070881
https://support.microsoft.com/help/5070881 - FixedEcoStruxure™ Foxboro DCS Advisor services installed with Microsoft Windows Server Update Services installed on Microsoft Windows Server 2022 <10.0.20348.4297cisa_csaf_ot
Patch KB5070884 from Microsoft includes a fix for this vulnerability and is available for download directly from WSUS. Reboot may be required to complete patch update. Customers should contact and work with [Global Customer Support](https://pasupport.se.com/home) to verify update has been completed.
- FixedEcoStruxure™ Foxboro DCS Advisor services installed with Windows Server Update Services application installed on Microsoft Windows Server 2016 <10.0.14393.8524cisa_csaf_ot
Patch KB5070882 from Microsoft includes a fix for this vulnerability and is available for download directly from WSUS. Reboot may be required to complete patch update. Customers should contact and work with [Global Customer Support](https://pasupport.se.com/home) to verify update has been completed.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
exploits (24)
Public proof-of-concept and weaponised exploit code.
- 0x7556/CVE-2025-59287CVE-2025-59287 注入WolfShell内存马PoC · poc_in_github
- 0xBruno/WSUSploit.NETPoC for CVE-2025-59287PoC · poc_in_github
- Adel-hx0d/cve-2025-59287Adel-hx0d/cve-2025-59287PoC · poc_in_github
affected products (113)
Products and version ranges known to be affected.
- Microsoft Windows 11 Windows Terminalall versionscert_bundDEcpe:/o:microsoft:windows_11:windows_terminal
- Microsoft Windows App Client for Desktopall versionscert_bundDEcpe:/o:microsoft:windows:app_client_for_desktop
- Microsoft Windows Remote Desktop Clientall versionscert_bundDEcpe:/o:microsoft:windows:remote_desktop_client_for_desktop
- Microsoft Windows Server 2008 R2 SP1all versionscert_bundDEcpe:/o:microsoft:windows_server:2008_r2_sp1
- Microsoft Windows Server 2022 23H2 Editionall versionscert_bundDEcpe:/o:microsoft:windows_server_2022:23h2_edition
advisories (4)
Vendor and ecosystem advisories describing this.
- NCSC-2025-0310Kwetsbaarheden verholpen in Microsoft WindowsNL2025-10-14csaf · ncsc_nlNL
Microsoft heeft kwetsbaarheden verholpen in Windows.
- WID-SEC-W-2025-2307Microsoft Windows: Mehrere SchwachstellenDeutsch2025-10-14csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Microsoft Windows Server, Microsoft Windows Server 2012, Microsoft Windows Server 2012 R2, Microsoft Windows 10, Microsoft Windows Server 2016, Microsoft Windows Server 2019, Microsoft Windows, Microsoft Windows Server 2022, Microsoft Windows 11 und Microsoft Windows Server 2025 ausnutzen, um Remote Code Execution, Privilegieneskalation, Datenexfiltration oder Systemabstürze zu verursachen.
- msrc_CVE-2025-59287Windows Server Update Service (WSUS) Remote Code Execution Vulnerability2025-10-14csaf · msrc_csafUS
To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle
- ICSA-25-352-02Schneider Electric EcoStruxure Foxboro DCS Advisor2025-12-09icsa · cisa_csaf_otUS
Schneider Electric is aware of a vulnerability disclosed by Microsoft in the Microsoft Windows Server Update Services (WSUS) used in the EcoStruxure™ Foxboro DCS Advisor services. The EcoStruxure™ Foxboro DCS Advisor, an optional component of the [EcoStruxure™ Foxboro DCS system](https://www.se.com/ww/en/work/products/industrial-automation-control/foxboro-dcs/), facilitates remote connectivity and diagnostics by continuously monitoring key performance indicators (KPI) on the I/A Series or Control Software system's process. Failure to apply the remediations provided below may risk a potential remote code execution event, which could result in system-level privileges acquired by unauthorized parties.
also known as (4)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (9)
External citations — patches, advisories, analysis.
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-59287cnnvd
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-59287enisa_euvd
- https://gist.github.com/hawktrace/880b54fb9c07ddb028baaae401bd3951Third Party Advisorynvd
- https://hawktrace.com/blog/CVE-2025-59287ExploitThird Party Advisorynvd
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-59287Vendor Advisorynvd
- https://www.bleepingcomputer.com/news/security/cisa-orders-feds-to-patch-windows-server-wsus-flaw-exploited-in-attacks/Press/Media Coveragenvd
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-59287Third Party AdvisoryUS Government Resourcenvd
- https://www.vicarius.io/vsociety/posts/cve-2025-59287-detection-script-rce-vulnerability-in-windows-server-update-serviceThird Party Advisorynvd
Attackers weaponise vulnerabilities like this against internet-exposed services. See what is exposed on your perimeter with a free passive scan.
Free scan