CVE-2025-53843 (GCVE-0-2025-53843)
Vulnerability from cvelistv5
Published
2025-11-18 17:01
Modified
2025-11-21 08:30
CWE
  • CWE-121 - Execute unauthorized code or commands
Summary
A stack-based buffer overflow vulnerability in Fortinet FortiOS 7.6.0 through 7.6.3, FortiOS 7.4.0 through 7.4.8, FortiOS 7.2 all versions, FortiOS 7.0 all versions, FortiOS 6.4 all versions allows attacker to execute unauthorized code or commands via specially crafted packets
Impacted products
Vendor Product Version
Fortinet FortiOS Version: 7.6.0    7.6.3
Version: 7.4.0    7.4.8
Version: 7.2.0    7.2.12
Version: 7.0.0    7.0.18
Version: 6.4.0    6.4.16
    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:7.4.8:*:*:*:*:*:*:*
    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:7.2.12:*:*:*:*:*:*:*
    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:*:*:*:*:*:*:*
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    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:7.0.18:*:*:*:*:*:*:*
    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:*:*:*:*:*:*:*
    cpe:2.3:o:fortinet:fortios:6.4.16:*:*:*:*:*:*:*
    cpe:2.3:o:fortinet:fortios:6.4.15:*:*:*:*:*:*:*
    cpe:2.3:o:fortinet:fortios:6.4.14:*:*:*:*:*:*:*
    cpe:2.3:o:fortinet:fortios:6.4.13:*:*:*:*:*:*:*
    cpe:2.3:o:fortinet:fortios:6.4.12:*:*:*:*:*:*:*
    cpe:2.3:o:fortinet:fortios:6.4.11:*:*:*:*:*:*:*
    cpe:2.3:o:fortinet:fortios:6.4.10:*:*:*:*:*:*:*
    cpe:2.3:o:fortinet:fortios:6.4.9:*:*:*:*:*:*:*
    cpe:2.3:o:fortinet:fortios:6.4.8:*:*:*:*:*:*:*
    cpe:2.3:o:fortinet:fortios:6.4.7:*:*:*:*:*:*:*
    cpe:2.3:o:fortinet:fortios:6.4.6:*:*:*:*:*:*:*
    cpe:2.3:o:fortinet:fortios:6.4.5:*:*:*:*:*:*:*
    cpe:2.3:o:fortinet:fortios:6.4.4:*:*:*:*:*:*:*
    cpe:2.3:o:fortinet:fortios:6.4.3:*:*:*:*:*:*:*
    cpe:2.3:o:fortinet:fortios:6.4.2:*:*:*:*:*:*:*
    cpe:2.3:o:fortinet:fortios:6.4.1:*:*:*:*:*:*:*
    cpe:2.3:o:fortinet:fortios:6.4.0:*:*:*:*:*:*:*
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        "orgId": "6abe59d8-c742-4dff-8ce8-9b0ca1073da8",
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    "dateReserved": "2025-07-10T08:53:33.014Z",
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    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2025-53843\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2025-11-18T20:21:05.772272Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2025-11-18T20:21:09.540Z\"}}], \"cna\": {\"metrics\": [{\"format\": \"CVSS\", \"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 6.9, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:W/RC:C\", \"integrityImpact\": \"HIGH\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"HIGH\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"LOW\", \"confidentialityImpact\": \"HIGH\"}}], \"affected\": [{\"cpes\": [\"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:7.4.8:*:*:*:*:*:*:*\", \"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:7.2.12:*:*:*:*:*:*:*\", \"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:*:*:*:*:*:*:*\", 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\"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:*:*:*:*:*:*:*\", \"cpe:2.3:o:fortinet:fortios:6.4.16:*:*:*:*:*:*:*\", \"cpe:2.3:o:fortinet:fortios:6.4.15:*:*:*:*:*:*:*\", \"cpe:2.3:o:fortinet:fortios:6.4.14:*:*:*:*:*:*:*\", \"cpe:2.3:o:fortinet:fortios:6.4.13:*:*:*:*:*:*:*\", \"cpe:2.3:o:fortinet:fortios:6.4.12:*:*:*:*:*:*:*\", \"cpe:2.3:o:fortinet:fortios:6.4.11:*:*:*:*:*:*:*\", \"cpe:2.3:o:fortinet:fortios:6.4.10:*:*:*:*:*:*:*\", \"cpe:2.3:o:fortinet:fortios:6.4.9:*:*:*:*:*:*:*\", \"cpe:2.3:o:fortinet:fortios:6.4.8:*:*:*:*:*:*:*\", \"cpe:2.3:o:fortinet:fortios:6.4.7:*:*:*:*:*:*:*\", \"cpe:2.3:o:fortinet:fortios:6.4.6:*:*:*:*:*:*:*\", \"cpe:2.3:o:fortinet:fortios:6.4.5:*:*:*:*:*:*:*\", \"cpe:2.3:o:fortinet:fortios:6.4.4:*:*:*:*:*:*:*\", \"cpe:2.3:o:fortinet:fortios:6.4.3:*:*:*:*:*:*:*\", \"cpe:2.3:o:fortinet:fortios:6.4.2:*:*:*:*:*:*:*\", \"cpe:2.3:o:fortinet:fortios:6.4.1:*:*:*:*:*:*:*\", \"cpe:2.3:o:fortinet:fortios:6.4.0:*:*:*:*:*:*:*\"], \"vendor\": \"Fortinet\", \"product\": \"FortiOS\", \"versions\": [{\"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\": \"7.2.12\"}, {\"status\": \"affected\", \"version\": \"7.0.0\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"7.0.18\"}, {\"status\": \"affected\", \"version\": \"6.4.0\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.4.16\"}], \"defaultStatus\": \"unaffected\"}], \"solutions\": [{\"lang\": \"en\", \"value\": \"Upgrade to upcoming  FortiOS version 8.0.0 or above\\nUpgrade to FortiOS version 7.6.4 or above\\nUpgrade to FortiOS version 7.4.9 or above\\nFortinet remediated this issue in FortiEdgeCloud version 25.3 and hence customers do not need to perform any action.\\nFortinet remediated this issue in FortiSASE version 25.3.c (not released) and hence customers do not need to perform any action.\\nUpgrade to FortiSwitchManager version 7.2.7 or above\\nUpgrade to FortiSwitchManager version 7.0.6 or above\"}], \"references\": [{\"url\": \"https://fortiguard.fortinet.com/psirt/FG-IR-25-358\", \"name\": \"https://fortiguard.fortinet.com/psirt/FG-IR-25-358\"}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"A stack-based buffer overflow vulnerability in Fortinet FortiOS 7.6.0 through 7.6.3, FortiOS 7.4.0 through 7.4.8, FortiOS 7.2 all versions, FortiOS 7.0 all versions, FortiOS 6.4 all versions allows attacker to execute unauthorized code or commands via specially crafted packets\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-121\", \"description\": \"Execute unauthorized code or commands\"}]}], \"providerMetadata\": {\"orgId\": \"6abe59d8-c742-4dff-8ce8-9b0ca1073da8\", \"shortName\": \"fortinet\", \"dateUpdated\": \"2025-11-21T08:30:44.314Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2025-53843\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-11-21T08:30:44.314Z\", \"dateReserved\": \"2025-07-10T08:53:33.014Z\", \"assignerOrgId\": \"6abe59d8-c742-4dff-8ce8-9b0ca1073da8\", \"datePublished\": \"2025-11-18T17:01:28.239Z\", \"assignerShortName\": \"fortinet\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


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Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.


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