CVE-2025-59719
📛 CVE Title
CVE-2025-59719
Description
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.
Overview
- State
- PUBLISHED
- Assigner (CNA)
- fortinet
- CVSS severity
- CRITICAL
- CVSS score
- 9.1 / 10
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C- Effective score
- 9.1 / 10 CRITICAL source: CNA overview
- CWE(s)
-
CWE-347 - Reserved
- 2025-09-19
- Published
- 2025-12-09 18:20 UTC
- Last updated
- 2026-03-20 13:39 UTC
- Source
- https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2025/59xxx/CVE-2025-59719.json
- Linked Threat
- CVE-2025-59719 — CVE-2025-59719
NVD triage scoring NVD CVE 2.0
Layer NVD adds on top of the CNA's CVE record — published / last-modified timestamps, exploitability / impact subscores, and the FIRST.org EPSS probability that this CVE will be exploited in the wild in the next 30 days.
- NVD published
- 2025-12-09 18:15:55 UTC
- NVD last modified
- 2026-06-17 09:46:35 UTC
- NVD CVSS v3.1
- 9.8 / 10 CRITICAL source: psirt@fortinet.com
- NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H- Exploitability subscore
- 3.9 / 10
- Impact subscore
- 5.9 / 10
- EPSS score
- 0.2405 (probability of exploitation in next 30 days)
- EPSS percentile
- 97.61% vs all CVEs — higher = more likely to be exploited, as of 2026-07-27
NVD / KEV / EPSS data refreshed 2026-07-27 19:35 UTC. Re-run the 🛰 Backfill from NVD button above to refresh.
European Union Vulnerability Database ENISA EUVD
ENISA's official EU repository for curated vulnerability intelligence. Carries a separate identifier (EUVD-YYYY-NNNN) and frequently exposes an earlier-published description + CVSS than NVD does.
- EUVD ID
-
EUVD-2025-202191 - Assigner
- fortinet
- Published
- Dec 9, 2025, 5:20:11 PM
- Updated
- Mar 20, 2026, 12:39:05 PM
- EUVD base score (CVSS 3.1)
-
9.1 / 10
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C - EUVD-reported EPSS
- 0.2600
- Vendors
- Fortinet
- Products
-
FortiWeb (7.6.0 ≤7.6.4)FortiWeb (7.4.0 ≤7.4.9)FortiWeb (8.0.0)
- Aliases
-
GHSA-chq4-235q-jp7w
ENISA description: 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.
EUVD references (1)
Affected products (1)
| Vendor | Product | Versions | Platforms |
|---|---|---|---|
| Fortinet | FortiWeb |
8.0.0 (affected),
7.6.0 (affected),
7.4.0 (affected)
|
— |
Affected products — CPE 2.3 (2) NVD
NVD's normalized CPE 2.3 matchers, used by vendor tools (vulnerability scanners, asset managers) for automated detection. Compare with the CNA's free-text "Affected products" section above.
cpe:2.3:a:fortinet:fortiweb:*:*:*:*:*:*:*:*cpe:2.3:a:fortinet:fortiweb:8.0.0:*:*:*:*:*:*:*
Vendor references (1)
References embedded in the original CVE record by the assigning CNA.
Web references (4)
DuckDuckGo results ranked by threat-intel / vendor advisory domains. Generated by the 🔎 Find references (web) button above — same flow as the Remediations search.
- http://cwe.mitre.org/data/definitions/347.html rapid7:cwe.mitre.org
- https://attackerkb.com/topics/CVE-2025-59719 rapid7:attackerkb.com
- https://fortiguard.fortinet.com/psirt/FG-IR-25-647 rapid7:fortiguard.fortinet.com
- https://www.cve.org/CVERecord?id=CVE-2025-59719 rapid7:www.cve.org
NVD-tagged references (2)
Reference list NVD curates from the CNA record, vendor advisories, and third-party reports. The tag chips below are NVD's analyst-assigned categories.
- https://fortiguard.fortinet.com/psirt/FG-IR-25-647 psirt@fortinet.com Vendor Advisory
- https://cert-portal.siemens.com/productcert/html/ssa-864900.html 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
Remediations (18)
Remediations are stored against the linked Threat row; the list below is deduplicated across both pages.
-
web:socradar.io
CVE-2025-59719 guidance for Fortinet FortiWeb: exploit status, affected versions, detection, mitigation , and references.
2026-09-27 17:13 UTC -
web:thecyberexpress.com
The attack vector looks exactly like the original CVE - 2025 -59718 exploit, but against the patched firmware. Technical Confusion and Workarounds The persistence of this flaw in version 7.4.9 has led to speculation that the initial patch was incomplete or that attackers have found a bypass to the mitigation logic.
2026-09-27 17:13 UTC -
web:learn.microsoft.com
As of November 11, 2025 , Home and Pro editions of Windows 11, version 23H2 have reached end of servicing. Enterprise and Education editions of version 23H2 will continue to receive monthly security updates until November 10, 2026.
2026-09-27 17:13 UTC -
web:itchol.com
FortiGate Vulnerabilities Exposed: Active Exploits of CVE - 2025 -59718 & CVE-2025-59719 (2026) Imagine waking up to news that the very firewalls meant to shield your organization's digital fortress are being breached like an unlocked back door—welcome to the unsettling world of active exploits targeting Fortinet's FortiGate devices.
2026-09-27 17:13 UTC -
web:nvd.nist.gov
Quick Info CVE Dictionary Entry: CVE-2025-59719 NVD Published Date: Dec 09, 2025 NVD Last Modified: Jun 17, 2026 Source: Fortinet, Inc.
2026-09-27 17:13 UTC -
web:patchapalooza.com
Microsoft Patch Tuesday vulnerability intelligence dashboard. Live CVSS scores, exploit tracking, threat analysis, and security update data from MSRC, VulnCheck, CISA KEV, and EPSS.
2026-09-27 17:13 UTC -
web:leargassecurity.com
Critical Fortinet authentication bypass vulnerability exploited for credential theft and network breaches; review impact, affected products, and patch guidance.
2026-09-27 17:13 UTC -
web:senserva.com
Every Microsoft security patch (KB) and the CVEs it fixes, with severity, CVSS, and CISA KEV status. Cross-linked to the CVE reference.
2026-09-27 17:13 UTC -
web:www.sentinelone.com
CVE-2025-59719 is an authentication bypass vulnerability in Fortinet FortiWeb. Learn about its impact, affected versions, and mitigation methods.
2026-05-22 14:47 UTC -
web:feedly.com
CVE-2025-59719 is a critical vulnerability with a CVSS score of 9.1, allowing unauthenticated attackers to bypass FortiCloud Single Sign-On (SSO) authentication through crafted SAML messages.
2026-05-22 14:47 UTC -
web:www.tenable.com
Microsoft addresses 128 CVEs in its July 2025 Patch Tuesday release, with 12 rated critical, and 115 rated important and one rated as moderate. Our counts omitted nine vulnerabilities reported by AMD and MITRE.
2026-05-22 14:47 UTC -
web:isc.sans.edu
Macs are affected as well, but a patch is currently only available for Windows. CVE - 2025 -49719: This vulnerability has already been made public. It does allow for information disclosure on a Microsoft SQL Server. To patch , you must patch the OLE DB Driver. CVE - 2025 -49717: Exploitation is considered less likely for this vulnerability.
2026-05-22 14:47 UTC -
web:nvd.nist.gov
An official website of the United States government Here's how you know
2026-05-22 14:47 UTC -
web:portal.msrc.microsoft.com
The Security Update Guide provides information on the latest Microsoft security updates, helping users understand and address potential vulnerabilities effectively.
2026-05-22 14:47 UTC -
web:thecyberexpress.com
Microsoft Patch Tuesday July 2025 was the busiest since January, with 130 vulnerabilities fixed - including 17 high-risk ones.
2026-05-22 14:47 UTC -
web:www.bleepingcomputer.com
Hackers are exploiting critical-severity vulnerabilities affecting multiple Fortinet products to get unauthorized access to admin accounts and steal system configuration files.
2026-05-22 14:47 UTC -
web:www.computer-center.com
Microsoft Patch Tuesday, July 2025 Edition by James Pearson | Jul 8, 2025 | News Microsoft today released updates to fix at least 137 security vulnerabilities in its Windows operating systems and supported software.
2026-05-22 14:47 UTC -
web:www.cvedetails.com
CVSS scores for CVE-2025-59719 ... CWE ids for CVE-2025-59719 CWE-347 Improper Verification of Cryptographic Signature The product does not verify, or incorrectly verifies, the cryptographic signature for data.
2026-05-22 14:47 UTC
AI Forensic Analysis
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Raw JSON
The full cvelistV5 record. Download as CVE-2025-59719.json.
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