CVE-2021-40837
Estado: ModificadaMedia (5.3)—
A vulnerability affecting F-Secure antivirus engine before Capricorn update 2022-02-01_01 was discovered whereby decompression of ACE file causes the scanner service to stop. The vulnerability can be exploited remotely by an attacker. A successful attack will result in denial-of-service of the antivirus engine.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
- Puntuación base: 5.3
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.66%
- Percentil entre todas las CVEs puntuadas: 50
- Fecha de la puntuación: 5/10/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
Tecnologías afectadas (6)
CWE
- NVD-CWE-noinfo
Referencias
- https://www.f-secure.com/en/business/support-and-downloads/security-advisories
- https://www.f-secure.com/en/business/support-and-downloads/security-advisories/cve-2021-40837
- https://www.f-secure.com/en/business/support-and-downloads/security-advisories
- https://www.f-secure.com/en/business/support-and-downloads/security-advisories/cve-2021-40837
JSON original (NVD)
Mostrar
{
"id": "CVE-2021-40837",
"cveTags": [],
"metrics": {
"cvssMetricV2": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"version": "2.0",
"baseScore": 5,
"accessVector": "NETWORK",
"vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
"authentication": "NONE",
"integrityImpact": "NONE",
"accessComplexity": "LOW",
"availabilityImpact": "PARTIAL",
"confidentialityImpact": "NONE"
},
"acInsufInfo": false,
"impactScore": 2.9,
"baseSeverity": "MEDIUM",
"obtainAllPrivilege": false,
"exploitabilityScore": 10,
"obtainUserPrivilege": false,
"obtainOtherPrivilege": false,
"userInteractionRequired": false
}
],
"cvssMetricV31": [
{
"type": "Secondary",
"source": "cve-notifications-us@f-secure.com",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 4.6,
"attackVector": "NETWORK",
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:L",
"integrityImpact": "NONE",
"userInteraction": "REQUIRED",
"attackComplexity": "LOW",
"availabilityImpact": "LOW",
"privilegesRequired": "LOW",
"confidentialityImpact": "LOW"
},
"impactScore": 2.5,
"exploitabilityScore": 2.1
},
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 5.3,
"attackVector": "NETWORK",
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
"integrityImpact": "NONE",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "LOW",
"privilegesRequired": "NONE",
"confidentialityImpact": "NONE"
},
"impactScore": 1.4,
"exploitabilityScore": 3.9
}
]
},
"affected": [
{
"source": "cve-notifications-us@f-secure.com",
"affectedData": [
{
"vendor": "F-Secure",
"product": "F-Secure endpoint protection products on Windows and Mac. F-Secure Linux Security (32-bit), F-Secure Linux Security 64, F-Secure Atlant, F-Secure Internet Gatekeeper & F-Secure Security Cloud",
"versions": [
{
"status": "affected",
"version": "All Version"
}
]
}
]
}
],
"published": "2022-02-09T13:15:08.527",
"references": [
{
"url": "https://www.f-secure.com/en/business/support-and-downloads/security-advisories",
"tags": [
"Vendor Advisory"
],
"source": "cve-notifications-us@f-secure.com"
},
{
"url": "https://www.f-secure.com/en/business/support-and-downloads/security-advisories/cve-2021-40837",
"tags": [
"Vendor Advisory"
],
"source": "cve-notifications-us@f-secure.com"
},
{
"url": "https://www.f-secure.com/en/business/support-and-downloads/security-advisories",
"tags": [
"Vendor Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://www.f-secure.com/en/business/support-and-downloads/security-advisories/cve-2021-40837",
"tags": [
"Vendor Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
}
],
"vulnStatus": "Modified",
"weaknesses": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"description": [
{
"lang": "en",
"value": "NVD-CWE-noinfo"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "A vulnerability affecting F-Secure antivirus engine before Capricorn update 2022-02-01_01 was discovered whereby decompression of ACE file causes the scanner service to stop. The vulnerability can be exploited remotely by an attacker. A successful attack will result in denial-of-service of the antivirus engine."
},
{
"lang": "es",
"value": "Se ha detectado una vulnerabilidad que afecta al motor antivirus de F-Secure versiones anteriores a la actualización 2022-02-01_01 de Capricorn, por la que una descompresión del archivo ACE causa la detención del servicio de escáner. La vulnerabilidad puede ser explotada de forma remota por un atacante. Un ataque con éxito resultará en una denegación de servicio del motor antivirus"
}
],
"lastModified": "2026-06-17T04:07:30.807",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:f-secure:atlant:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "1C810E84-5BA2-4C76-A0B1-787DA8FD6F43",
"versionEndExcluding": "2022-02-01_01"
},
{
"criteria": "cpe:2.3:a:f-secure:internet_gatekeeper:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "55CED2BE-3907-486B-B929-3F23BF59C32D",
"versionEndExcluding": "2022-02-01_01"
},
{
"criteria": "cpe:2.3:a:f-secure:linux_security:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "A0463D0C-3B1C-457A-BA24-6BB15814886B",
"versionEndExcluding": "2022-02-01_01"
},
{
"criteria": "cpe:2.3:a:f-secure:security_cloud:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "418AEC01-756D-404E-A2C6-A68C174B4430",
"versionEndExcluding": "2022-02-01_01"
}
],
"operator": "OR"
}
]
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:f-secure:elements_endpoint_detection_and_response:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "8BBEB008-A43D-4A57-8EC6-6486ADE46ED7",
"versionEndExcluding": "2022-02-01_01"
},
{
"criteria": "cpe:2.3:a:f-secure:elements_endpoint_protection:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "52DF86B1-BA20-41C6-A283-79915A102A53",
"versionEndExcluding": "2022-02-01_01"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "387021A0-AF36-463C-A605-32EA7DAC172E"
},
{
"criteria": "cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "A2572D17-1DE6-457B-99CC-64AFD54487EA"
}
],
"operator": "OR"
}
],
"operator": "AND"
}
],
"sourceIdentifier": "cve-notifications-us@f-secure.com"
}