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CVE-2025-21208 is a remote code execution vulnerability in Windows Routing and Remote Access Service (RRAS). RRAS is a Windows networking component that provides routing and remote access capabilities on Windows systems and Windows Server platforms. The vulnerability is classified by Microsoft as Important severity and has been reported with a CVSS base score of 8.8. Available information identifies the affected component and the impact category as remote code execution, but does not provide technical detail about the root cause, vulnerable function, attack vector specifics, or exploitation mechanism.
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What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
What an attacker gets, and what they’ve been doing with it.
If you can’t patch tonight, do this now.
Patch, then assume compromise.
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
3 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A high-severity remote code execution vulnerability affecting Windows RRAS with CVSS 8.8.
A high-severity remote code execution vulnerability in Windows Routing and Remote Access Service mentioned in the broader list of February 2025 Microsoft vulnerabilities.
A remote code execution vulnerability in Windows Routing and Remote Access Service (RRAS).
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.