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CVE-2026-50509 is an elevation-of-privilege vulnerability in the Windows Wireless Wide Area Network Service (WwanSvc). The flaw is caused by deserialization of untrusted data within the service. A locally authenticated attacker can exploit the vulnerable deserialization path to elevate privileges on the affected system. The issue affects the WWAN service component rather than requiring remote network reachability, and successful exploitation can result in execution with higher privileges than those initially held by the attacker.
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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.
Patch, then assume compromise.
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
1 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
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.