Hardcoded Encryption Key Used for VPN Saved Passwords

unknownCVE-2026-44278

CVSSv3 Score: 2.1 A Missing Authorization [CWE-862] in FortiClient Windows may allow an authenticated local attacker to decrypt a currently logged in users VPN password via use of an unprotected DLL function. Revised on 2026-05-12 00:00:00

CSIRTS triage

vendor: Fortinet product: FortiClient Information disclosure

What: A missing authorization vulnerability allows local attackers to decrypt VPN passwords.
Who is affected: Authenticated local users of FortiClient on Windows.
Urgency: Remediation is important as it could lead to sensitive information disclosure.
Action: Apply patches or restrict access to the affected functionality.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source: Fortinet FortiGuard PSIRT (INTL · vendor-psirt · site)
Severity: unknown
Published: 2026-05-12
Exploitation: Not in CISA KEV at last sync

Original advisory: https://fortiguard.fortinet.com/psirt/FG-IR-26-129

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Low exploitation riskCVE-2026-442780.10% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 1% of all scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-44278	coverage & exploitation status	NVD · CVE.org

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