CVE-2025-62439 (GCVE-0-2025-62439)

Vulnerability from cvelistv5 – Published: 2026-02-10 15:39 – Updated: 2026-05-12 12:08
VLAI?
Summary
An Improper Verification of Source of a Communication Channel vulnerability [CWE-940] vulnerability in Fortinet FortiOS 7.6.0 through 7.6.4, FortiOS 7.4.0 through 7.4.9, FortiOS 7.2 all versions, FortiOS 7.0 all versions may allow an authenticated user with knowledge of FSSO policy configurations to gain unauthorized access to protected network resources via crafted requests.
CWE
  • CWE-940 - Improper access control
Assigner
References
Impacted products
Vendor Product Version
Fortinet FortiOS Affected: 7.6.0 , ≤ 7.6.4 (semver)
Affected: 7.4.0 , ≤ 7.4.9 (semver)
Affected: 7.2.0 , ≤ 7.2.13 (semver)
Affected: 7.0.0 , ≤ 7.0.19 (semver)
    cpe:2.3:o:fortinet:fortios:7.6.4:*:*:*:*:*:*:*
    cpe:2.3:o:fortinet:fortios:7.6.3:*:*:*:*:*:*:*
    cpe:2.3:o:fortinet:fortios:7.6.2:*:*:*:*:*:*:*
    cpe:2.3:o:fortinet:fortios:7.6.1:*:*:*:*:*:*:*
    cpe:2.3:o:fortinet:fortios:7.6.0:*:*:*:*:*:*:*
    cpe:2.3:o:fortinet:fortios:7.4.9:*:*:*:*:*:*:*
    cpe:2.3:o:fortinet:fortios:7.4.8:*:*:*:*:*:*:*
    cpe:2.3:o:fortinet:fortios:7.4.7:*:*:*:*:*:*:*
    cpe:2.3:o:fortinet:fortios:7.4.6:*:*:*:*:*:*:*
    cpe:2.3:o:fortinet:fortios:7.4.5:*:*:*:*:*:*:*
    cpe:2.3:o:fortinet:fortios:7.4.4:*:*:*:*:*:*:*
    cpe:2.3:o:fortinet:fortios:7.4.3:*:*:*:*:*:*:*
    cpe:2.3:o:fortinet:fortios:7.4.2:*:*:*:*:*:*:*
    cpe:2.3:o:fortinet:fortios:7.4.1:*:*:*:*:*:*:*
    cpe:2.3:o:fortinet:fortios:7.4.0:*:*:*:*:*:*:*
    cpe:2.3:o:fortinet:fortios:7.2.13:*:*:*:*:*:*:*
    cpe:2.3:o:fortinet:fortios:7.2.12:*:*:*:*:*:*:*
    cpe:2.3:o:fortinet:fortios:7.2.11:*:*:*:*:*:*:*
    cpe:2.3:o:fortinet:fortios:7.2.10:*:*:*:*:*:*:*
    cpe:2.3:o:fortinet:fortios:7.2.9:*:*:*:*:*:*:*
    cpe:2.3:o:fortinet:fortios:7.2.8:*:*:*:*:*:*:*
    cpe:2.3:o:fortinet:fortios:7.2.7:*:*:*:*:*:*:*
    cpe:2.3:o:fortinet:fortios:7.2.6:*:*:*:*:*:*:*
    cpe:2.3:o:fortinet:fortios:7.2.5:*:*:*:*:*:*:*
    cpe:2.3:o:fortinet:fortios:7.2.4:*:*:*:*:*:*:*
    cpe:2.3:o:fortinet:fortios:7.2.3:*:*:*:*:*:*:*
    cpe:2.3:o:fortinet:fortios:7.2.2:*:*:*:*:*:*:*
    cpe:2.3:o:fortinet:fortios:7.2.1:*:*:*:*:*:*:*
    cpe:2.3:o:fortinet:fortios:7.2.0:*:*:*:*:*:*:*
    cpe:2.3:o:fortinet:fortios:7.0.19:*:*:*:*:*:*:*
    cpe:2.3:o:fortinet:fortios:7.0.18:*:*:*:*:*:*:*
    cpe:2.3:o:fortinet:fortios:7.0.17:*:*:*:*:*:*:*
    cpe:2.3:o:fortinet:fortios:7.0.16:*:*:*:*:*:*:*
    cpe:2.3:o:fortinet:fortios:7.0.15:*:*:*:*:*:*:*
    cpe:2.3:o:fortinet:fortios:7.0.14:*:*:*:*:*:*:*
    cpe:2.3:o:fortinet:fortios:7.0.13:*:*:*:*:*:*:*
    cpe:2.3:o:fortinet:fortios:7.0.12:*:*:*:*:*:*:*
    cpe:2.3:o:fortinet:fortios:7.0.11:*:*:*:*:*:*:*
    cpe:2.3:o:fortinet:fortios:7.0.10:*:*:*:*:*:*:*
    cpe:2.3:o:fortinet:fortios:7.0.9:*:*:*:*:*:*:*
    cpe:2.3:o:fortinet:fortios:7.0.8:*:*:*:*:*:*:*
    cpe:2.3:o:fortinet:fortios:7.0.7:*:*:*:*:*:*:*
    cpe:2.3:o:fortinet:fortios:7.0.6:*:*:*:*:*:*:*
    cpe:2.3:o:fortinet:fortios:7.0.5:*:*:*:*:*:*:*
    cpe:2.3:o:fortinet:fortios:7.0.4:*:*:*:*:*:*:*
    cpe:2.3:o:fortinet:fortios:7.0.3:*:*:*:*:*:*:*
    cpe:2.3:o:fortinet:fortios:7.0.2:*:*:*:*:*:*:*
    cpe:2.3:o:fortinet:fortios:7.0.1:*:*:*:*:*:*:*
    cpe:2.3:o:fortinet:fortios:7.0.0:*:*:*:*:*:*:*
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\"cpe:2.3:o:fortinet:fortios:7.0.11:*:*:*:*:*:*:*\", \"cpe:2.3:o:fortinet:fortios:7.0.10:*:*:*:*:*:*:*\", \"cpe:2.3:o:fortinet:fortios:7.0.9:*:*:*:*:*:*:*\", \"cpe:2.3:o:fortinet:fortios:7.0.8:*:*:*:*:*:*:*\", \"cpe:2.3:o:fortinet:fortios:7.0.7:*:*:*:*:*:*:*\", \"cpe:2.3:o:fortinet:fortios:7.0.6:*:*:*:*:*:*:*\", \"cpe:2.3:o:fortinet:fortios:7.0.5:*:*:*:*:*:*:*\", \"cpe:2.3:o:fortinet:fortios:7.0.4:*:*:*:*:*:*:*\", \"cpe:2.3:o:fortinet:fortios:7.0.3:*:*:*:*:*:*:*\", \"cpe:2.3:o:fortinet:fortios:7.0.2:*:*:*:*:*:*:*\", \"cpe:2.3:o:fortinet:fortios:7.0.1:*:*:*:*:*:*:*\", \"cpe:2.3:o:fortinet:fortios:7.0.0:*:*:*:*:*:*:*\"], \"vendor\": \"Fortinet\", \"product\": \"FortiOS\", \"versions\": [{\"status\": \"affected\", \"version\": \"7.6.0\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"7.6.4\"}, {\"status\": \"affected\", \"version\": \"7.4.0\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"7.4.9\"}, {\"status\": \"affected\", \"version\": \"7.2.0\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"7.2.13\"}, {\"status\": \"affected\", \"version\": \"7.0.0\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"7.0.19\"}], \"defaultStatus\": \"unaffected\"}], \"solutions\": [{\"lang\": \"en\", \"value\": \"Upgrade to upcoming  FortiOS version 8.0.0 or above\\nUpgrade to FortiOS version 7.6.5 or above\\nUpgrade to FortiOS version 7.4.10 or above\"}], \"references\": [{\"url\": \"https://fortiguard.fortinet.com/psirt/FG-IR-25-384\", \"name\": \"https://fortiguard.fortinet.com/psirt/FG-IR-25-384\"}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"An Improper Verification of Source of a Communication Channel vulnerability [CWE-940] vulnerability in Fortinet FortiOS 7.6.0 through 7.6.4, FortiOS 7.4.0 through 7.4.9, FortiOS 7.2 all versions, FortiOS 7.0 all versions may allow an authenticated user with knowledge of FSSO policy configurations to gain unauthorized access to protected network resources via crafted requests.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-940\", \"description\": \"Improper access control\"}]}], \"providerMetadata\": {\"orgId\": \"6abe59d8-c742-4dff-8ce8-9b0ca1073da8\", \"shortName\": \"fortinet\", \"dateUpdated\": \"2026-02-10T15:39:12.842Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2025-62439\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-02-11T14:57:58.973Z\", \"dateReserved\": \"2025-10-14T08:08:14.905Z\", \"assignerOrgId\": \"6abe59d8-c742-4dff-8ce8-9b0ca1073da8\", \"datePublished\": \"2026-02-10T15:39:12.842Z\", \"assignerShortName\": \"fortinet\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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Detection rules are retrieved from Rulezet.

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