CVE-2025-53843 (GCVE-0-2025-53843)
Vulnerability from cvelistv5 – Published: 2025-11-18 17:01 – Updated: 2025-11-21 08:30
VLAI?
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
Severity ?
CWE
- CWE-121 - Execute unauthorized code or commands
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Fortinet | FortiOS |
Affected:
7.6.0 , ≤ 7.6.3
(semver)
Affected: 7.4.0 , ≤ 7.4.8 (semver) Affected: 7.2.0 , ≤ 7.2.12 (semver) Affected: 7.0.0 , ≤ 7.0.18 (semver) Affected: 6.4.0 , ≤ 6.4.16 (semver) 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:*:*:*:*:*:*:* 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:7.0.18:*:*:*:*:*:*:* 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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\"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
| Author | Source | Type | Date |
|---|
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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