CVE-2025-59719

CRITICALPre-NVD 9.19.8
EchelonGraph scoreHIGH confidence

“▲” 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.

Triggered by: ENISA EU KEV (actively exploited, as ENISA records it; Source: ENISA EUVD)
Sources: the CNA's CVSS, EPSS, ENISA's EU Known Exploited Vulnerabilities catalogue, GitHub Security Advisory
Elevated

Also known asEUVD-2025-202191 (ENISA EUVD) · GHSA-chq4-235q-jp7w (GitHub Security Advisories)Source: ENISA EUVD

9.8EG
EchelonGraph verdictPatch nowRemediate sooner than your standard update timelines at low mission impact and as soon as possible at medium or high (the SSVC decision on this page).
  • Exploited in the wild, as ENISA's EU KEV records it (Source: ENISA EUVD); CISA has not listed it
CISA-KEV: Not listedENISA EU KEV: Listed (Source: ENISA EUVD)EPSS PROB: 27%CVSS: 9.1Exploit: No code on recordExposed services: Not assessed

Upgrade to FortiWeb version 8.0.1 or above (from the CVE record's solution, Fortinet, Inc.) — apply it.

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.

CVSS v3
9.1
EG Score
9.8CRITICALhigh confidence
EG Risk
99
EG 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
27%
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
27% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-11-13). 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, 2026
Fix named in the CVE record's solution (Fortinet, Inc.).

Vendor 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 15× in last 7d / 62× 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 its CVE.org record (CNA or CISA ADP). 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). "EchelonGraph re-scored" is our own recompute of this CVE's score, not an update from a source, and is not counted in the refreshes above. Most recent first.

Showing the most recent 100 of 259 rows 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. None are among the latest 100 rows. The 159 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-13 20:11 UTCEchelonGraph re-scored
  2. 2026-11-13 20:11 UTCGHSA enrichmentGHSA-chq4-235q-jp7w · GitHub severity CRITICAL · GitHub CVSS 9.8
  3. 2026-11-13 16:50 UTCEPSS rescoreEPSS 27% · 98th percentile
  4. 2026-11-12 19:49 UTCEchelonGraph re-scored
  5. 2026-11-12 19:49 UTCGHSA enrichmentGHSA-chq4-235q-jp7w · GitHub severity CRITICAL · GitHub CVSS 9.8
  6. 2026-11-12 16:32 UTCEPSS rescoreEPSS 27% · 98th percentile
  7. 2026-11-11 20:48 UTCEchelonGraph re-scored
  8. 2026-11-11 20:48 UTCGHSA enrichmentGHSA-chq4-235q-jp7w · GitHub severity CRITICAL · GitHub CVSS 9.8
  9. 2026-11-11 16:36 UTCEPSS rescoreEPSS 27% · 98th percentile
  10. 2026-11-10 21:35 UTCEchelonGraph re-scored
  11. 2026-11-10 21:35 UTCGHSA enrichmentGHSA-chq4-235q-jp7w · GitHub severity CRITICAL · GitHub CVSS 9.8
  12. 2026-11-10 16:41 UTCEPSS rescoreEPSS 27% · 98th percentile
  13. 2026-11-09 22:28 UTCEchelonGraph re-scored
  14. 2026-11-09 22:28 UTCGHSA enrichmentGHSA-chq4-235q-jp7w · GitHub severity CRITICAL · GitHub CVSS 9.8
  15. 2026-11-09 16:33 UTCEPSS rescoreEPSS 27% · 98th percentile
  16. 2026-11-08 23:28 UTCEchelonGraph re-scored
  17. 2026-11-08 23:28 UTCGHSA enrichmentGHSA-chq4-235q-jp7w · GitHub severity CRITICAL · GitHub CVSS 9.8
  18. 2026-11-08 16:37 UTCEPSS rescoreEPSS 29% · 98th percentile
  19. 2026-11-08 00:27 UTCEchelonGraph re-scored
  20. 2026-11-08 00:27 UTCGHSA enrichmentGHSA-chq4-235q-jp7w · GitHub severity CRITICAL · GitHub CVSS 9.8
  21. 2026-11-07 16:37 UTCEPSS rescoreEPSS 29% · 98th percentile
  22. 2026-11-07 01:27 UTCEchelonGraph re-scored
  23. 2026-11-07 01:27 UTCGHSA enrichmentGHSA-chq4-235q-jp7w · GitHub severity CRITICAL · GitHub CVSS 9.8
  24. 2026-11-06 16:34 UTCEPSS rescoreEPSS 29% · 98th percentile
  25. 2026-11-06 02:27 UTCEchelonGraph re-scored
Show 75 more
  1. 2026-11-06 02:27 UTCGHSA enrichmentGHSA-chq4-235q-jp7w · GitHub severity CRITICAL · GitHub CVSS 9.8
  2. 2026-11-05 16:35 UTCEPSS rescoreEPSS 29% · 98th percentile
  3. 2026-11-05 03:27 UTCEchelonGraph re-scored
  4. 2026-11-05 03:27 UTCGHSA enrichmentGHSA-chq4-235q-jp7w · GitHub severity CRITICAL · GitHub CVSS 9.8
  5. 2026-11-04 16:33 UTCEPSS rescoreEPSS 29% · 98th percentile
  6. 2026-11-04 04:26 UTCEchelonGraph re-scored
  7. 2026-11-04 04:26 UTCGHSA enrichmentGHSA-chq4-235q-jp7w · GitHub severity CRITICAL · GitHub CVSS 9.8
  8. 2026-11-03 16:45 UTCEPSS rescoreEPSS 29% · 98th percentile
  9. 2026-11-03 05:21 UTCEchelonGraph re-scored
  10. 2026-11-03 05:21 UTCGHSA enrichmentGHSA-chq4-235q-jp7w · GitHub severity CRITICAL · GitHub CVSS 9.8
  11. 2026-11-02 16:43 UTCEPSS rescoreEPSS 29% · 98th percentile
  12. 2026-11-02 06:20 UTCEchelonGraph re-scored
  13. 2026-11-02 06:20 UTCGHSA enrichmentGHSA-chq4-235q-jp7w · GitHub severity CRITICAL · GitHub CVSS 9.8
  14. 2026-11-01 07:20 UTCEchelonGraph re-scored
  15. 2026-11-01 07:20 UTCGHSA enrichmentGHSA-chq4-235q-jp7w · GitHub severity CRITICAL · GitHub CVSS 9.8
  16. 2026-10-31 16:31 UTCEPSS rescoreEPSS 29% · 98th percentile
  17. 2026-10-31 08:19 UTCEchelonGraph re-scored
  18. 2026-10-31 08:19 UTCGHSA enrichmentGHSA-chq4-235q-jp7w · GitHub severity CRITICAL · GitHub CVSS 9.8
  19. 2026-10-30 16:33 UTCEPSS rescoreEPSS 29% · 98th percentile
  20. 2026-10-30 09:19 UTCEchelonGraph re-scored
  21. 2026-10-30 09:19 UTCGHSA enrichmentGHSA-chq4-235q-jp7w · GitHub severity CRITICAL · GitHub CVSS 9.8
  22. 2026-10-29 16:32 UTCEPSS rescoreEPSS 29% · 98th percentile
  23. 2026-10-29 10:19 UTCEchelonGraph re-scored
  24. 2026-10-29 10:19 UTCGHSA enrichmentGHSA-chq4-235q-jp7w · GitHub severity CRITICAL · GitHub CVSS 9.8
  25. 2026-10-28 16:30 UTCEPSS rescoreEPSS 29% · 98th percentile
  26. 2026-10-28 11:19 UTCEchelonGraph re-scored
  27. 2026-10-28 11:19 UTCGHSA enrichmentGHSA-chq4-235q-jp7w · GitHub severity CRITICAL · GitHub CVSS 9.8
  28. 2026-10-27 16:30 UTCEPSS rescoreEPSS 29% · 98th percentile
  29. 2026-10-27 11:50 UTCEchelonGraph re-scored
  30. 2026-10-27 11:50 UTCGHSA enrichmentGHSA-chq4-235q-jp7w · GitHub severity CRITICAL · GitHub CVSS 9.8
  31. 2026-10-26 16:30 UTCEPSS rescoreEPSS 29% · 98th percentile
  32. 2026-10-26 12:50 UTCEchelonGraph re-scored
  33. 2026-10-26 12:50 UTCGHSA enrichmentGHSA-chq4-235q-jp7w · GitHub severity CRITICAL · GitHub CVSS 9.8
  34. 2026-10-25 16:31 UTCEPSS rescoreEPSS 29% · 98th percentile
  35. 2026-10-25 13:47 UTCEchelonGraph re-scored
  36. 2026-10-25 13:47 UTCGHSA enrichmentGHSA-chq4-235q-jp7w · GitHub severity CRITICAL · GitHub CVSS 9.8
  37. 2026-10-25 13:46 UTCENISA EU KEV listingEUVD-2025-202191 · listed January 27, 2026 · reported by CERT-AT · Source: ENISA EUVD
  38. 2026-10-24 21:16 UTCEchelonGraph re-scored
  39. 2026-10-24 21:16 UTCGHSA enrichmentGHSA-chq4-235q-jp7w · GitHub severity CRITICAL · GitHub CVSS 9.8
  40. 2026-10-24 16:31 UTCEPSS rescoreEPSS 29% · 98th percentile
  41. 2026-10-23 22:15 UTCEchelonGraph re-scored
  42. 2026-10-23 22:15 UTCGHSA enrichmentGHSA-chq4-235q-jp7w · GitHub severity CRITICAL · GitHub CVSS 9.8
  43. 2026-10-23 16:30 UTCEPSS rescoreEPSS 29% · 98th percentile
  44. 2026-10-22 23:14 UTCEchelonGraph re-scored
  45. 2026-10-22 23:14 UTCGHSA enrichmentGHSA-chq4-235q-jp7w · GitHub severity CRITICAL · GitHub CVSS 9.8
  46. 2026-10-22 16:33 UTCEPSS rescoreEPSS 29% · 98th percentile
  47. 2026-10-22 00:14 UTCEchelonGraph re-scored
  48. 2026-10-22 00:13 UTCGHSA enrichmentGHSA-chq4-235q-jp7w · GitHub severity CRITICAL · GitHub CVSS 9.8
  49. 2026-10-21 16:31 UTCEPSS rescoreEPSS 29% · 98th percentile
  50. 2026-10-21 01:10 UTCEchelonGraph re-scored
  51. 2026-10-21 01:10 UTCGHSA enrichmentGHSA-chq4-235q-jp7w · GitHub severity CRITICAL · GitHub CVSS 9.8
  52. 2026-10-20 16:31 UTCEPSS rescoreEPSS 29% · 98th percentile
  53. 2026-10-20 02:07 UTCEchelonGraph re-scored
  54. 2026-10-20 02:07 UTCGHSA enrichmentGHSA-chq4-235q-jp7w · GitHub severity CRITICAL · GitHub CVSS 9.8
  55. 2026-10-19 16:31 UTCEPSS rescoreEPSS 29% · 98th percentile
  56. 2026-10-19 01:20 UTCEchelonGraph re-scored
  57. 2026-10-19 01:19 UTCGHSA enrichmentGHSA-chq4-235q-jp7w · GitHub severity CRITICAL · GitHub CVSS 9.8
  58. 2026-10-18 16:31 UTCEPSS rescoreEPSS 29% · 98th percentile
  59. 2026-10-18 05:22 UTCEchelonGraph re-scored
  60. 2026-10-18 02:18 UTCEchelonGraph re-scored
  61. 2026-10-18 02:18 UTCGHSA enrichmentGHSA-chq4-235q-jp7w · GitHub severity CRITICAL · GitHub CVSS 9.8
  62. 2026-10-17 16:33 UTCEPSS rescoreEPSS 29% · 98th percentile
  63. 2026-10-17 03:15 UTCEchelonGraph re-scored
  64. 2026-10-17 03:15 UTCGHSA enrichmentGHSA-chq4-235q-jp7w · GitHub severity CRITICAL · GitHub CVSS 9.8
  65. 2026-10-16 16:39 UTCEPSS rescoreEPSS 29% · 98th percentile
  66. 2026-10-16 04:14 UTCEchelonGraph re-scored
  67. 2026-10-16 04:13 UTCGHSA enrichmentGHSA-chq4-235q-jp7w · GitHub severity CRITICAL · GitHub CVSS 9.8
  68. 2026-10-15 16:31 UTCEPSS rescoreEPSS 29% · 98th percentile
  69. 2026-10-15 01:32 UTCEchelonGraph re-scored
  70. 2026-10-15 01:31 UTCGHSA enrichmentGHSA-chq4-235q-jp7w · GitHub severity CRITICAL · GitHub CVSS 9.8
  71. 2026-10-14 16:31 UTCEPSS rescoreEPSS 29% · 98th percentile
  72. 2026-10-14 10:56 UTCEchelonGraph re-scored
  73. 2026-10-14 10:56 UTCGHSA enrichmentGHSA-chq4-235q-jp7w · GitHub severity CRITICAL · GitHub CVSS 9.8
  74. 2026-10-13 16:33 UTCEPSS rescoreEPSS 29% · 98th percentile
  75. 2026-10-13 09:35 UTCGHSA enrichmentGHSA-chq4-235q-jp7w · GitHub severity CRITICAL · GitHub CVSS 9.8

Frequently asked(5)

What is CVE-2025-59719?
CVE-2025-59719 is a critical-severity vulnerability; its CVE record was published on December 9, 2025. 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.
When was the CVE record for CVE-2025-59719 published?
The CVE record for CVE-2025-59719 was published on December 9, 2025. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of October 15, 2026; the record at its source may have been updated since.
Is CVE-2025-59719 actively exploited?
CVE-2025-59719 is not currently on CISA's Known Exploited Vulnerabilities catalog. ENISA's EU Known Exploited Vulnerabilities catalogue lists CVE-2025-59719 (added January 27, 2026, reported by CERT-AT): ENISA records its exploitation in the wild. Source: ENISA EUVD (EU Known Exploited Vulnerabilities catalogue), reproduced with acknowledgement. FIRST EPSS estimates a 27% probability of exploitation in the next 30 days (98th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2025-59719?
CVE-2025-59719 has a CVSS base score of 9.1 (the CNA's own assessment, by fortinet; NVD's own analysis pending). EchelonGraph synthesises the CNA's CVSS + ENISA's EU KEV (Source: ENISA EUVD) + FIRST EPSS + GHSA into a combined EG score of 9.8 (CRITICAL).
How do I remediate CVE-2025-59719?
The CVE record's solution for CVE-2025-59719, written by its CNA Fortinet, Inc., names the fix: "Upgrade to FortiWeb version 8.0.1 or above". The vendor advisories EchelonGraph has for CVE-2025-59719 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2025-59719

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