Search/CVE-2025-59719
● CVE — Critical

CVE-2025-59719

VendorfortinetProductfortiwebDiscoveredDec 9, 2025UpdatedJun 9, 2026

An improper verification of cryptographic signature vulnerability in Fortinet FortiWeb 8.0.0, FortiWeb 7.6.0 through 7.6.4, FortiWeb 7.4.0 through 7.4.9 may allow an unauthenticated attacker to bypass the FortiCloud SSO login authentication via a crafted SAML response message.

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CVSS v3.1
9.8 CRITICAL
EPSS
29.2%
probability of exploitation in 30 days
CISA KEV
Not listed
no confirmed exploitation reported
News coverage
5
sources referencing this CVE
Related IOCs
0
seen in the same coverage
EPSS Trend
Aug 16, 2026 → Sep 5, 2026
▲ 4.18pp
25.0% → 29.2% over 3 tracked changes
CVSS v3.1 Detail
Attack VectorNETWORK
Attack ComplexityLOW
Privileges RequiredNONE
User InteractionNONE
ScopeUNCHANGED
ConfidentialityHIGH
IntegrityHIGH
AvailabilityHIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Connections
8 relationships
Timeline
disclosure → media coverage
Dec 9, 2025
Disclosure — published as a CVE record. · last revised by NVD Jun 9, 2026
Dec 10, 2025
redhotcyber.com reports: Vulnerabilità critica in FortiOS e altri prodotti Fortinet: aggiornamenti urgenti
Dec 16, 2025
redhotcyber.com reports: CVE-2025-59718 e CVE-2025-59719 su FortiGate in sfruttamento attivo
Dec 16, 2025
thehackernews.com reports: Fortinet FortiGate Under Active Attack Through SAML SSO Authentication Bypass
Dec 17, 2025
helpnetsecurity.com reports: Attackers are exploiting auth bypass vulnerability on FortiGate firewalls (CVE-2025-59718)
Jan 22, 2026
acn.gov.it reports: Rilevato possibile sfruttamento attivo di vulnerabilità già note in prodotti Fortinet