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CVE-2025-64678 is a heap-based buffer overflow vulnerability in Windows Routing and Remote Access Service (RRAS). The flaw allows an unauthorized attacker to trigger memory corruption over the network and achieve remote code execution. Available scoring information identifies the issue as high severity with CVSS v3.1 vector AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H, indicating network reachability, low attack complexity, no privileges required, and a user-interaction requirement. The weakness is mapped to CWE-122.
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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.
8 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A remote code execution vulnerability in Windows RRAS.
A heap-based buffer overflow in Microsoft Windows Routing and Remote Access Service (RRAS) that can lead to remote code execution over a network.
A high-severity vulnerability in the Windows Resilient File System with a CVSS score of 8.8.
Specific Microsoft vulnerability affecting Windows Routing and Remote Access Service (RRAS) listed in the December 2025 Security Updates.
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.