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HighCISA KEVExploited in the wildPublic exploit

Windows Remote Access Connection Manager Elevation of Privilege

IdentifiersCVE-2025-59230CWE-284· Improper Access Control

CVE-2025-59230 is an elevation-of-privilege vulnerability in the Windows Remote Access Connection Manager (RasMan) service caused by improper access control. Available reporting indicates the issue centers on how RasMan handles RPC endpoint registration. If RasMan is not running, a local attacker can register a specific trusted RPC endpoint before the legitimate service starts. Privileged services that trust and connect to that endpoint may then interact with the attacker-controlled process instead of RasMan, enabling privilege escalation. Microsoft described the flaw as allowing an authorized attacker to elevate privileges locally, and multiple reports state successful exploitation can result in SYSTEM-level privileges. The vulnerability was reported as actively exploited in the wild and patched by Microsoft in the October 2025 security updates.

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ANALYST BRIEF

Impact, mitigation & remediation

What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.

Impact

What an attacker gets, and what they’ve been doing with it.

Successful exploitation allows local privilege escalation from an authenticated or otherwise authorized local context to SYSTEM. This can give an attacker full control over the affected host, including the ability to disable security tools, execute arbitrary code with highest local privileges, install malware, access protected data and credentials, and use the compromised system for further post-exploitation activity.

Mitigation

If you can’t patch tonight, do this now.

If immediate patching is not possible, reduce opportunities for local attacker execution and privilege escalation by minimizing local logon rights, restricting untrusted code execution, enforcing application control, and monitoring the RasMan service for unexpected stoppages or abnormal behavior. Reporting also indicates a related RasMan crash issue could be used to create favorable conditions for exploitation when RasMan is not running; where applicable, temporary micropatches from 0patch were reported for the crash vector, but the primary mitigation for CVE-2025-59230 is installation of Microsoft's official update.

Remediation

Patch, then assume compromise.

Apply Microsoft's October 2025 security updates that address CVE-2025-59230 on all affected Windows systems. Prioritize systems where local attacker access is plausible, including shared workstations, developer systems, jump hosts, and servers with interactive logon paths. Because the vulnerability was reported as actively exploited, patching should be treated as urgent.
PUBLIC EXPLOITS

Exploits

No public exploits tracked yet. Mallory keeps watching.

VALID 0 / 0 TOTALView more in app

No public exploit code observed for this vulnerability.

EXPOSURE SURFACE

Affected products & vendors

Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.

VendorProductType
Microsoft CorporationWindows 10 1507operating_system
Microsoft CorporationWindows 10 1607operating_system
Microsoft CorporationWindows 10 1809operating_system
Microsoft CorporationWindows 10 21h2operating_system
Microsoft CorporationWindows 10 22h2operating_system
Microsoft CorporationWindows 11 22h2operating_system
Microsoft CorporationWindows 11 23h2operating_system
Microsoft CorporationWindows 11 24h2operating_system
Microsoft CorporationWindows 11 25h2operating_system
Microsoft CorporationWindows Server 2008operating_system
Microsoft CorporationWindows Server 2008 R2operating_system
Microsoft CorporationWindows Server 2008 Sp2operating_system
Microsoft CorporationWindows Server 2012operating_system
Microsoft CorporationWindows Server 2012 R2operating_system
Microsoft CorporationWindows Server 2016operating_system
Microsoft CorporationWindows Server 2019operating_system
Microsoft CorporationWindows Server 2022operating_system
Microsoft CorporationWindows Server 2022 23h2operating_system
Microsoft CorporationWindows Server 2025operating_system
Microsoft CorporationWindows Server 23h2operating_system

Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.

What this page doesn’t show

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Exposure mapping

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Threat actor evidence

Every observed campaign linking this CVE to a named adversary.

Associated malware

Malware families riding this exploit, with evidence and IOCs.

Detection signatures2

YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.

Vendor-by-vendor mapping

Cross-references every affected SKU, including bundled OEM variants.

Social activity34

Community discussion across Reddit, Mastodon, and other social sources.