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CVE-2026-44278 is a use of hard-coded cryptographic key vulnerability in Fortinet FortiClientWindows affecting version 7.4.0 through 7.4.2 and all versions in the 7.2 branch. The issue involves the use of a fixed embedded encryption key to protect saved VPN passwords. Because the key is hard-coded rather than uniquely derived per installation or user, an attacker who can access the protected password material can recover the underlying VPN credentials, resulting in disclosure of sensitive authentication data. Available information identifies the weakness as affecting the mechanism used to store VPN saved passwords, but does not provide further technical detail about the exact storage component or attack path.
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What an attacker gets, and what they’ve been doing with it.
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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.
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.