CASCACascade Atlas

Evidence dossier

CVE-2024-55591

CVE-2024-55591

84.3–99.3Priority evidence range
As known Jul 19, 2026, 5:00 AM UTCgen-56ccdaf9

Normalized restatement

An Authentication Bypass Using an Alternate Path or Channel vulnerability [CWE-288] affecting FortiOS version 7.0.0 through 7.0.16 and FortiProxy version 7.0.0 through 7.0.19 and 7.2.0 through 7.2.12 allows a remote attacker to gain super-admin privileges via crafted requests to Node.js websocket module.

State
PUBLISHED
Published
Jan 14, 2025
Updated
Jul 8, 2026
Evidence coverage
85%
CISA KEVCatalog member

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

FIRST EPSS98.26%

2026-07-18 · v2026.06.15 · percentile 99.9%

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

An Authentication Bypass Using an Alternate Path or Channel vulnerability [CWE-288] affecting FortiOS version 7.0.0 through 7.0.16 and FortiProxy version 7.0.0 through 7.0.19 and 7.2.0 through 7.2.12 allows a remote attacker to gain super-admin privileges via crafted requests to Node.js websocket module.

CISA KEVoriginal assertion
observed_exploitation

Fortinet FortiOS and FortiProxy Authentication Bypass Vulnerability

FIRST EPSSoriginal assertion
model_probability

Probability 0.982590000000; percentile 0.999100000000

Applicability

Cited product scope

Trace impact →
FortinetFortiOS
[{"status": "affected", "version": "7.0.0", "versionType": "semver", "lessThanOrEqual": "7.0.16"}]unknown
FortinetFortiProxy
[{"status": "affected", "version": "7.2.0", "versionType": "semver", "lessThanOrEqual": "7.2.12"}, {"status": "affected", "version": "7.0.0", "versionType": "semver", "lessThanOrEqual": "7.0.19"}]unknown
Unknown vendorUnknown product
cpe:2.3:a:fortinet:fortiproxy:*:*:*:*:*:*:*:*; start including 7.0.0; end excluding 7.0.20supported
Unknown vendorUnknown product
cpe:2.3:a:fortinet:fortiproxy:*:*:*:*:*:*:*:*; start including 7.2.0; end excluding 7.2.13supported
Unknown vendorUnknown product
cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:*; start including 7.0.0; end excluding 7.0.17supported

Assessments

CVSS by origin

9.8
nvd@nist.govCVSS 3.1 · role PrimaryCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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
9.6
fortinetCVSS 3.1 · role unknownCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:H/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.