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CVE-2026-50304 is a stack-based buffer overflow vulnerability in Active Directory Federation Services (AD FS). The flaw can be triggered by an unauthorized attacker over the network and results in a denial-of-service condition. Based on the available information, the vulnerability arises from improper bounds handling involving stack memory within AD FS, allowing crafted network input to corrupt process state and terminate or destabilize the affected service. No further detail about the specific vulnerable function or code path is currently available.
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What an attacker gets, and what they’ve been doing with it.
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Patch, then assume compromise.
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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.
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.
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Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.