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.
CVE-2025-59719
“▲” beside the score: it is higher than the CVSS score beside it.
Score elevated to 9.8 because this CVE is listed on ENISA's EU Known Exploited Vulnerabilities catalogue (Source: ENISA EUVD), indicating that ENISA records real-world exploitation of it. It is not on CISA's Known Exploited Vulnerabilities catalog. The CNA's CVSS baseline 9.1 retained for reference (NVD's own analysis pending). Confidence: HIGH.
Also known asEUVD-2025-202191 (ENISA EUVD) · GHSA-chq4-235q-jp7w (GitHub Security Advisories)Source: ENISA EUVD
- Exploited in the wild, as ENISA's EU KEV records it (Source: ENISA EUVD); CISA has not listed it
Upgrade to FortiWeb version 8.0.1 or above (from the CVE record's solution, Fortinet, Inc.) — apply it.
- CVSS v3
- 9.1
- EG Score
- 9.8CRITICALhigh confidence
- EG Risk
- 99EG Risk 99/100
EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.
How it’s computed (value × EchelonGraph’s weight)Severity98% × 45%Impact severity (EG Severity): CVSS 9.8 of 10. Never the KEV-floored or EPSS-lifted EG Score.Exploitation100% × 40%Fixed at 100% for an ENISA EU KEV listing (CISA's catalog does not list this CVE): EchelonGraph's rule. Source: ENISA EUVD.Automatability100% × 15%CISA's SSVC Automatable value: yes (Vulnrichment).SSVC (CISA's decision table, applied by EchelonGraph): Attend at low mission impact; Act at medium or high.Exploitation active (ENISA EU KEV listing; Source: ENISA EUVD) · Automatable yes (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). From CISA's SSVC values (Vulnrichment): automatable and technical impact; the others come from the sources named beside them. EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.Action: Upgrade to FortiWeb version 8.0.1 or above (from the CVE record's solution, Fortinet, Inc.). Apply it sooner than your standard update timelines at low mission impact and as soon as possible at medium or high. - EPSS PROB
- 29%
- EPSS %ILE
- 98th
- KEV
- Not in CISA'sENISA's EU KEV lists it (below). Source: ENISA EUVD
What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)
The EG score (9.8): severity, escalated by confirmed exploitation. This CVE's 9.8 is its impact severity (EG Severity), not escalated.
- EG Severity
- 9.8 CRITICALCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
- EG Likelihood
- 29% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-11-01). FIRST's exploitation probability, not an EchelonGraph model.
- Confirmed exploitation
- ENISA EU KEV (Source: ENISA EUVD)Reported apart from the likelihood: an observed fact, not a probability.
- EG Priority
- SSVC Act at medium mission impactAttend at low mission impact; Act at medium or high.CISA BOD 26-04: 3 days if the affected system is publicly exposed; 60 days if it is not.Each input and its source, and whom BOD 26-04 binds: the SSVC and BOD 26-04 blocks below.
ENISA EU KEV: listed January 27, 2026, reported by CERT-AT; not on CISA's KEV catalog.
Source: ENISA EUVD (EU Known Exploited Vulnerabilities catalogue), reproduced with acknowledgement. How a listing moves the EG score
SSVC (CISA's decision table, applied by EchelonGraph)Attend at low mission impact; Act at medium or high.
Upgrade to FortiWeb version 8.0.1 or above (from the CVE record's solution, Fortinet, Inc.). Apply it sooner than your standard update timelines at low mission impact and as soon as possible at medium or high.
Exploitation active (ENISA EU KEV listing; Source: ENISA EUVD) · Automatable yes (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). From CISA's SSVC values (Vulnrichment): automatable and technical impact; the others come from the sources named beside them. EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table
BOD 26-04 (CISA's remediation timeline, Table 1)3 days if the affected system is publicly exposed; 60 days if it is not.
The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable yes (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it
Published
December 9, 2025
Last Modified
October 15, 2026
Advisory Details (2)
Auto-updated Sep 16, 2026Vendor Advisories for CVE-2025-59719(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 22× in last 7d / 77× in last 30d)
Each row is a time one of our pipelines fetched, updated or re-scored this CVE. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.
Showing the most recent 99 of 222 refreshes on record for this CVE.
A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. 1 repeat row among the latest 100 is merged into the row it repeats. The 123 oldest rows on record are not shown and were not checked, so the counts can still include repeats.
- 2026-11-02 06:20 UTCEG score recompute
- 2026-11-02 06:20 UTCGHSA enrichmentGHSA-chq4-235q-jp7w · GitHub severity CRITICAL · GitHub CVSS 9.8
- 2026-11-01 07:20 UTCEG score recompute
- 2026-11-01 07:20 UTCGHSA enrichmentGHSA-chq4-235q-jp7w · GitHub severity CRITICAL · GitHub CVSS 9.8
- 2026-10-31 16:31 UTCEPSS rescoreEPSS 29% · 98th percentile
- 2026-10-31 08:19 UTCEG score recompute
- 2026-10-31 08:19 UTCGHSA enrichmentGHSA-chq4-235q-jp7w · GitHub severity CRITICAL · GitHub CVSS 9.8
- 2026-10-30 16:33 UTCEPSS rescoreEPSS 29% · 98th percentile
- 2026-10-30 09:19 UTCEG score recompute
- 2026-10-30 09:19 UTCGHSA enrichmentGHSA-chq4-235q-jp7w · GitHub severity CRITICAL · GitHub CVSS 9.8
- 2026-10-29 16:32 UTCEPSS rescoreEPSS 29% · 98th percentile
- 2026-10-29 10:19 UTCEG score recompute
- 2026-10-29 10:19 UTCGHSA enrichmentGHSA-chq4-235q-jp7w · GitHub severity CRITICAL · GitHub CVSS 9.8
- 2026-10-28 16:30 UTCEPSS rescoreEPSS 29% · 98th percentile
- 2026-10-28 11:19 UTCEG score recompute
- 2026-10-28 11:19 UTCGHSA enrichmentGHSA-chq4-235q-jp7w · GitHub severity CRITICAL · GitHub CVSS 9.8
- 2026-10-27 16:30 UTCEPSS rescoreEPSS 29% · 98th percentile
- 2026-10-27 11:50 UTCEG score recompute
- 2026-10-27 11:50 UTCGHSA enrichmentGHSA-chq4-235q-jp7w · GitHub severity CRITICAL · GitHub CVSS 9.8
- 2026-10-26 16:30 UTCEPSS rescoreEPSS 29% · 98th percentile
- 2026-10-26 12:50 UTCEG score recompute
- 2026-10-26 12:50 UTCGHSA enrichmentGHSA-chq4-235q-jp7w · GitHub severity CRITICAL · GitHub CVSS 9.8
- 2026-10-25 16:31 UTCEPSS rescoreEPSS 29% · 98th percentile
- 2026-10-25 13:47 UTCEG score recompute
- 2026-10-25 13:47 UTCGHSA enrichmentGHSA-chq4-235q-jp7w · GitHub severity CRITICAL · GitHub CVSS 9.8
Show 74 moreShow fewer
- 2026-10-25 13:46 UTCENISA EU KEV listingEUVD-2025-202191 · listed January 27, 2026 · reported by CERT-AT · Source: ENISA EUVD
- 2026-10-24 21:16 UTCEG score recompute
- 2026-10-24 21:16 UTCGHSA enrichmentGHSA-chq4-235q-jp7w · GitHub severity CRITICAL · GitHub CVSS 9.8
- 2026-10-24 16:31 UTCEPSS rescoreEPSS 29% · 98th percentile
- 2026-10-23 22:15 UTCEG score recompute
- 2026-10-23 22:15 UTCGHSA enrichmentGHSA-chq4-235q-jp7w · GitHub severity CRITICAL · GitHub CVSS 9.8
- 2026-10-23 16:30 UTCEPSS rescoreEPSS 29% · 98th percentile
- 2026-10-22 23:14 UTCEG score recompute
- 2026-10-22 23:14 UTCGHSA enrichmentGHSA-chq4-235q-jp7w · GitHub severity CRITICAL · GitHub CVSS 9.8
- 2026-10-22 16:33 UTCEPSS rescoreEPSS 29% · 98th percentile
- 2026-10-22 00:14 UTCEG score recompute
- 2026-10-22 00:13 UTCGHSA enrichmentGHSA-chq4-235q-jp7w · GitHub severity CRITICAL · GitHub CVSS 9.8
- 2026-10-21 16:31 UTCEPSS rescoreEPSS 29% · 98th percentile
- 2026-10-21 01:10 UTCEG score recompute
- 2026-10-21 01:10 UTCGHSA enrichmentGHSA-chq4-235q-jp7w · GitHub severity CRITICAL · GitHub CVSS 9.8
- 2026-10-20 16:31 UTCEPSS rescoreEPSS 29% · 98th percentile
- 2026-10-20 02:07 UTCEG score recompute
- 2026-10-20 02:07 UTCGHSA enrichmentGHSA-chq4-235q-jp7w · GitHub severity CRITICAL · GitHub CVSS 9.8
- 2026-10-19 16:31 UTCEPSS rescoreEPSS 29% · 98th percentile
- 2026-10-19 01:20 UTCEG score recompute
- 2026-10-19 01:19 UTCGHSA enrichmentGHSA-chq4-235q-jp7w · GitHub severity CRITICAL · GitHub CVSS 9.8
- 2026-10-18 16:31 UTCEPSS rescoreEPSS 29% · 98th percentile
- 2026-10-18 05:22 UTCEG score recompute
- 2026-10-18 02:18 UTCEG score recompute
- 2026-10-18 02:18 UTCGHSA enrichmentGHSA-chq4-235q-jp7w · GitHub severity CRITICAL · GitHub CVSS 9.8
- 2026-10-17 16:33 UTCEPSS rescoreEPSS 29% · 98th percentile
- 2026-10-17 03:15 UTCEG score recompute
- 2026-10-17 03:15 UTCGHSA enrichmentGHSA-chq4-235q-jp7w · GitHub severity CRITICAL · GitHub CVSS 9.8
- 2026-10-16 16:39 UTCEPSS rescoreEPSS 29% · 98th percentile
- 2026-10-16 04:14 UTCEG score recompute
- 2026-10-16 04:13 UTCGHSA enrichmentGHSA-chq4-235q-jp7w · GitHub severity CRITICAL · GitHub CVSS 9.8
- 2026-10-15 16:31 UTCEPSS rescoreEPSS 29% · 98th percentile
- 2026-10-15 01:32 UTCEG score recompute
- 2026-10-15 01:31 UTCGHSA enrichmentGHSA-chq4-235q-jp7w · GitHub severity CRITICAL · GitHub CVSS 9.8
- 2026-10-14 16:31 UTCEPSS rescoreEPSS 29% · 98th percentile
- 2026-10-14 10:56 UTCEG score recompute
- 2026-10-14 10:56 UTCGHSA enrichmentGHSA-chq4-235q-jp7w · GitHub severity CRITICAL · GitHub CVSS 9.8
- 2026-10-13 16:33 UTCEPSS rescoreEPSS 29% · 98th percentile
- 2026-10-13 09:35 UTCGHSA enrichmentGHSA-chq4-235q-jp7w · GitHub severity CRITICAL · GitHub CVSS 9.8
- 2026-10-12 16:53 UTCEG score recompute
- 2026-10-12 16:33 UTCEPSS rescoreEPSS 29% · 98th percentile
- 2026-10-12 10:32 UTCGHSA enrichmentGHSA-chq4-235q-jp7w · GitHub severity CRITICAL · GitHub CVSS 9.8
- 2026-10-11 20:27 UTCEG score recompute
- 2026-10-11 18:39 UTCEG score recompute
- 2026-10-11 15:14 UTCEG score recompute
- 2026-10-11 13:47 UTCEPSS rescoreEPSS 29% · 98th percentile
- 2026-10-10 19:59 UTCEPSS rescoreEPSS 29% · 98th percentile
- 2026-10-09 20:06 UTCEPSS rescoreEPSS 29% · 98th percentile
- 2026-10-08 17:10 UTCEPSS rescoreEPSS 29% · 98th percentile
- 2026-10-07 23:47 UTCEPSS rescoreEPSS 29% · 98th percentile
- 2026-10-06 15:17 UTCEPSS rescoreEPSS 29% · 98th percentile
- 2026-10-03 14:25 UTCEPSS rescoreEPSS 29% · 98th percentile
- 2026-10-01 19:49 UTCEPSS rescoreEPSS 29% · 98th percentile
- 2026-09-30 15:02 UTCEPSS rescoreEPSS 29% · 98th percentile
- 2026-09-29 15:20 UTCEPSS rescoreEPSS 29% · 98th percentile
- 2026-09-26 15:58 UTCEPSS rescoreEPSS 29% · 98th percentile
- 2026-09-24 14:02 UTCEPSS rescoreEPSS 29% · 98th percentile
- 2026-09-23 13:47 UTCEPSS rescoreEPSS 29% · 98th percentile
- 2026-09-19 15:42 UTCEPSS rescoreEPSS 29% · 98th percentile
- 2026-09-18 19:27 UTCEPSS rescoreEPSS 29% · 98th percentile
- 2026-09-17 19:30 UTCEPSS rescoreEPSS 29% · 98th percentile
- 2026-09-16 14:07 UTCEPSS rescoreEPSS 29% · 98th percentile
- 2026-09-15 03:10 UTCEPSS rescoreEPSS 29% · 98th percentile
- 2026-09-12 15:00 UTCEPSS rescoreEPSS 29% · 98th percentile
- 2026-09-11 14:52 UTCEPSS rescoreEPSS 29% · 98th percentile
- 2026-09-11 09:36 UTCEPSS rescoreEPSS 29% · 98th percentile
- 2026-09-10 09:34 UTCEPSS rescoreEPSS 29% · 98th percentile
- 2026-09-08 22:00 UTCEPSS rescoreEPSS 29% · 98th percentile
- 2026-09-06 13:47 UTCEPSS rescoreEPSS 29% · 98th percentile
- 2026-09-04 05:06 UTCEPSS rescoreEPSS 30% · 98th percentile
- 2026-09-02 14:11 UTCEPSS rescoreEPSS 30% · 98th percentile
- 2026-09-01 13:53 UTCEPSS rescoreEPSS 30% · 98th percentile
- 2026-08-30 19:16 UTCEPSS rescoreEPSS 30% · 98th percentile
- 2026-08-30 01:21 UTCEPSS rescoreEPSS 30% · 98th percentile
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Frequently asked(5)
What is CVE-2025-59719?
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What is the CVSS score of CVE-2025-59719?
How do I remediate CVE-2025-59719?
Dependency Blast Radius
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