CASCACascade Atlas

Evidence dossier

CVE-2025-59718

CVE-2025-59718

80.8–95.8Priority evidence range
As known Jul 19, 2026, 5:00 AM UTCgen-56ccdaf9

Normalized restatement

A improper verification of cryptographic signature vulnerability in Fortinet FortiOS 7.6.0 through 7.6.3, FortiOS 7.4.0 through 7.4.8, FortiOS 7.2.0 through 7.2.11, FortiOS 7.0.0 through 7.0.17, FortiProxy 7.6.0 through 7.6.3, FortiProxy 7.4.0 through 7.4.10, FortiProxy 7.2.0 through 7.2.14, FortiProxy 7.0.0 through 7.0.21, FortiSwitchManager 7.2.0 through 7.2.6, FortiSwitchManager 7.0.0 through 7.0.5 allows an unauthenticated attacker to bypass the FortiCloud SSO login authentication via a crafted SAML response message.

State
PUBLISHED
Published
Dec 9, 2025
Updated
Jul 14, 2026
Evidence coverage
85%
CISA KEVCatalog member

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

FIRST EPSS66.32%

2026-07-18 · v2026.06.15 · percentile 99.2%

Source stateNo scored conflict

Distinct CVSS assessments remain side by side; none are averaged.

Source comparison

Who said what

CISA-ADPindependent enrichment
container

CISA ADP Vulnrichment

fortinetoriginal assertion
container

A improper verification of cryptographic signature vulnerability in Fortinet FortiOS 7.6.0 through 7.6.3, FortiOS 7.4.0 through 7.4.8, FortiOS 7.2.0 through 7.2.11, FortiOS 7.0.0 through 7.0.17, FortiProxy 7.6.0 through 7.6.3, FortiProxy 7.4.0 through 7.4.10, FortiProxy 7.2.0 through 7.2.14, FortiProxy 7.0.0 through 7.0.21, FortiSwitchManager 7.2.0 through 7.2.6, FortiSwitchManager 7.0.0 through 7.0.5 allows an unauthenticated attacker to bypass the FortiCloud SSO login authentication via a crafted SAML response message.

siemens-SADPunknown origin
container

Container present

CISA KEVoriginal assertion
observed_exploitation

Fortinet Multiple Products Improper Verification of Cryptographic Signature Vulnerability

FIRST EPSSoriginal assertion
model_probability

Probability 0.663220000000; percentile 0.991970000000

Applicability

Cited product scope

Trace impact →
FortinetFortiOS
[{"status": "affected", "version": "7.6.0", "versionType": "semver", "lessThanOrEqual": "7.6.3"}, {"status": "affected", "version": "7.4.0", "versionType": "semver", "lessThanOrEqual": "7.4.8"}, {"status": "affected", "version": "7.2.0", "versionType": "semver", "lessThanOrEqual": "7.2.11"}, {"status": "affected", "version": "7.0.0", "versionType": "semver", "lessThanOrEqual": "7.0.17"}]unknown
FortinetFortiProxy
[{"status": "affected", "version": "7.6.0", "versionType": "semver", "lessThanOrEqual": "7.6.3"}, {"status": "affected", "version": "7.4.0", "versionType": "semver", "lessThanOrEqual": "7.4.10"}, {"status": "affected", "version": "7.2.0", "versionType": "semver", "lessThanOrEqual": "7.2.14"}, {"status": "affected", "version": "7.0.0", "versionType": "semver", "lessThanOrEqual": "7.0.21"}]unknown
FortinetFortiSwitchManager
[{"status": "affected", "version": "7.2.0", "versionType": "semver", "lessThanOrEqual": "7.2.6"}, {"status": "affected", "version": "7.0.0", "versionType": "semver", "lessThanOrEqual": "7.0.5"}]unknown
SiemensRUGGEDCOM APE1808
[{"status": "affected", "version": "0", "lessThan": "*", "versionType": "custom"}]unknown
Unknown vendorUnknown product
cpe:2.3:a:fortinet:fortiproxy:*:*:*:*:*:*:*:*; start including 7.0.0; end excluding 7.0.22supported
Unknown vendorUnknown product
cpe:2.3:a:fortinet:fortiproxy:*:*:*:*:*:*:*:*; start including 7.2.0; end excluding 7.2.15supported
Unknown vendorUnknown product
cpe:2.3:a:fortinet:fortiproxy:*:*:*:*:*:*:*:*; start including 7.4.0; end excluding 7.4.11supported
Unknown vendorUnknown product
cpe:2.3:a:fortinet:fortiproxy:*:*:*:*:*:*:*:*; start including 7.6.0; end excluding 7.6.4supported
Unknown vendorUnknown product
cpe:2.3:a:fortinet:fortiswitchmanager:*:*:*:*:*:*:*:*; start including 7.0.0; end excluding 7.0.6supported
Unknown vendorUnknown product
cpe:2.3:a:fortinet:fortiswitchmanager:*:*:*:*:*:*:*:*; start including 7.2.0; end excluding 7.2.7supported
Unknown vendorUnknown product
cpe:2.3:h:siemens:ruggedcom_ape1808:-:*:*:*:*:*:*:*constrained
Unknown vendorUnknown product
cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:*; start including 7.0.0; end excluding 7.0.18supported
Unknown vendorUnknown product
cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:*; start including 7.2.0; end excluding 7.2.12supported
Unknown vendorUnknown product
cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:*; start including 7.4.0; end excluding 7.4.9supported
Unknown vendorUnknown product
cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:*; start including 7.6.0; end excluding 7.6.4supported
Unknown vendorUnknown product
cpe:2.3:o:siemens:ruggedcom_ape1808_firmware:-:*:*:*:*:*:*:*supported

Assessments

CVSS by origin

9.8
psirt@fortinet.comCVSS 3.1 · role SecondaryCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.1
fortinetCVSS 3.1 · role unknownCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C

Limitations and unknowns

  • KEV membership is authoritative for the catalog, not proof of exposure in any environment.
  • EPSS is a dated model probability and not an individual-environment prediction.
  • Affected or fixed status applies only to the exact cited product and version scope; unresolved scope remains unknown.
  • NVD-carried upstream facts remain derivative and are not independent corroboration.
  • Only NVD metrics validated under the generation-bound calculator are Public Priority eligible; direct CVE record metrics remain display-only.
  • NVD CVSS source eligibility is closed: NVD-authored, exact record-source, or registered same-CVE container origin; unmapped sources remain display-only.
  • Factor D is unknown in Public Core because no accepted canonical mapping-obligation ledger is present.
  • Core replay supports the active and immediately prior generation; retrospective valid-at replay is deferred.