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CVE-2026-62872 is an elevation of privilege vulnerability in Microsoft .NET Framework caused by incorrect authorization. The flaw allows an authenticated attacker with low privileges to exploit the vulnerable authorization logic over the network and obtain elevated privileges in the context of the affected application or user. Microsoft associates the issue with CWE-863. Affected .NET Framework branches include 3.5, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, and 4.8.1 across multiple supported Windows client and server releases.
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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.
4 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
.NET Framework Elevation of Privilege vulnerability.
An elevation of privilege vulnerability in Microsoft .NET Framework caused by incorrect authorization, allowing an authorized attacker to elevate privileges over a network.
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.