CVE-2019-12678
A vulnerability in the Session Initiation Protocol (SIP) inspection module of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to improper parsing of SIP messages. An attacker could exploit this vulnerability by sending a malicious SIP packet through an affected device. A successful exploit could allow the attacker to trigger an integer underflow, causing the software to try to read unmapped memory and resulting in a crash.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Puntuación base: 7.5
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 1.84%
- Percentil entre todas las CVEs puntuadas: 78
- Fecha de la puntuación: 6/10/2026
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 (3)
CWE
- CWE-191
- CWE-191
Referencias
JSON original (NVD)
Mostrar
{
"id": "CVE-2019-12678",
"cveTags": [],
"metrics": {
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2019-12678",
"role": "CISA Coordinator",
"options": [
{
"exploitation": "none"
},
{
"automatable": "yes"
},
{
"technicalImpact": "partial"
}
],
"version": "2.0.3",
"timestamp": "2024-11-19T17:22:47.740939Z"
}
}
],
"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
}
],
"cvssMetricV30": [
{
"type": "Secondary",
"source": "psirt@cisco.com",
"cvssData": {
"scope": "CHANGED",
"version": "3.0",
"baseScore": 8.6,
"attackVector": "NETWORK",
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H",
"integrityImpact": "NONE",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "HIGH",
"privilegesRequired": "NONE",
"confidentialityImpact": "NONE"
},
"impactScore": 4,
"exploitabilityScore": 3.9
}
],
"cvssMetricV31": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 7.5,
"attackVector": "NETWORK",
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"integrityImpact": "NONE",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "HIGH",
"privilegesRequired": "NONE",
"confidentialityImpact": "NONE"
},
"impactScore": 3.6,
"exploitabilityScore": 3.9
}
]
},
"affected": [
{
"source": "psirt@cisco.com",
"affectedData": [
{
"vendor": "Cisco",
"product": "Cisco Adaptive Security Appliance (ASA) Software",
"versions": [
{
"status": "affected",
"version": "unspecified",
"lessThan": "n/a",
"versionType": "custom"
}
]
}
]
}
],
"published": "2019-10-02T19:15:12.390",
"references": [
{
"url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20191002-asa-ftd-sip-dos",
"tags": [
"Vendor Advisory"
],
"source": "psirt@cisco.com"
},
{
"url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20191002-asa-ftd-sip-dos",
"tags": [
"Vendor Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
}
],
"vulnStatus": "Modified",
"weaknesses": [
{
"type": "Secondary",
"source": "psirt@cisco.com",
"description": [
{
"lang": "en",
"value": "CWE-191"
}
]
},
{
"type": "Primary",
"source": "nvd@nist.gov",
"description": [
{
"lang": "en",
"value": "CWE-191"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "A vulnerability in the Session Initiation Protocol (SIP) inspection module of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to improper parsing of SIP messages. An attacker could exploit this vulnerability by sending a malicious SIP packet through an affected device. A successful exploit could allow the attacker to trigger an integer underflow, causing the software to try to read unmapped memory and resulting in a crash."
},
{
"lang": "es",
"value": "Una vulnerabilidad en el módulo de inspección del Session Initiation Protocol (SIP) del Software Cisco Adaptive Security Appliance (ASA) y el Software Cisco Firepower Threat Defense (FTD), podría permitir a un atacante remoto no autenticado causar una condición de denegación de servicio (DoS) en un dispositivo afectado. La vulnerabilidad es debido al análisis inapropiado de los mensajes SIP. Un atacante podría explotar esta vulnerabilidad mediante el envío de un paquete SIP malicioso por medio de un dispositivo afectado. Una explotación con éxito podría permitir al atacante desencadenar un subdesbordamiento de enteros, haciendo que el software intente leer una memoria no asignada y resultando en un bloqueo."
}
],
"lastModified": "2026-08-11T19:37:30.880",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:cisco:adaptive_security_appliance:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "FB6A7A4A-45A5-4348-AF15-AE070F98577E",
"versionEndExcluding": "9.4.4.37"
},
{
"criteria": "cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "DDD6750E-A7C2-4666-BF9E-05DD379CE324",
"versionEndExcluding": "9.6.4.34",
"versionStartIncluding": "9.5"
},
{
"criteria": "cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "0810C0B8-ADF0-4436-A02E-E0F9F3A995D5",
"versionEndExcluding": "9.8.4.7",
"versionStartIncluding": "9.7"
},
{
"criteria": "cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "F3118855-5066-4FB7-B63E-EB694D6E00FA",
"versionEndExcluding": "9.9.2.56",
"versionStartIncluding": "9.9"
},
{
"criteria": "cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "6D22E9AC-8A5B-4616-86C5-396929CB31F4",
"versionEndExcluding": "9.10.1.27",
"versionStartIncluding": "9.10"
},
{
"criteria": "cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "D5706D2C-2710-4E83-892E-00B943E61783",
"versionEndExcluding": "9.12.2.1",
"versionStartIncluding": "9.12"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:cisco:asa_5505:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "8E6A8BB7-2000-4CA2-9DD7-89573CE4C73A"
},
{
"criteria": "cpe:2.3:h:cisco:asa_5510:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "B091B9BA-D4CA-435B-8D66-602B45F0E0BD"
},
{
"criteria": "cpe:2.3:h:cisco:asa_5512-x:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "08F0F160-DAD2-48D4-B7B2-4818B2526F35"
},
{
"criteria": "cpe:2.3:h:cisco:asa_5515-x:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "977D597B-F6DE-4438-AB02-06BE64D71EBE"
},
{
"criteria": "cpe:2.3:h:cisco:asa_5520:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "2B387F62-6341-434D-903F-9B72E7F84ECB"
},
{
"criteria": "cpe:2.3:h:cisco:asa_5525-x:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "EB71EB29-0115-4307-A9F7-262394FD9FB0"
},
{
"criteria": "cpe:2.3:h:cisco:asa_5550:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "E6287D95-F564-44B7-A0F9-91396D7C2C4E"
},
{
"criteria": "cpe:2.3:h:cisco:asa_5555-x:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "5535C936-391B-4619-AA03-B35265FC15D7"
},
{
"criteria": "cpe:2.3:h:cisco:asa_5580:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "D1E828B8-5ECC-4A09-B2AD-DEDC558713DE"
},
{
"criteria": "cpe:2.3:h:cisco:asa_5585-x:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "16AE20C2-C77E-4E04-BF13-A48696E52426"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:cisco:secure_firewall_threat_defense:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "DA0F5302-D0A7-4820-9751-1757A92C60D2",
"versionEndExcluding": "6.2.3.15"
},
{
"criteria": "cpe:2.3:a:cisco:secure_firewall_threat_defense:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "8E7C2529-8E86-42D4-8515-596042280646",
"versionEndExcluding": "6.3.0.4",
"versionStartIncluding": "6.3.0"
},
{
"criteria": "cpe:2.3:a:cisco:secure_firewall_threat_defense:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "D62507FE-550F-411D-B309-27B4D7B6BFA7",
"versionEndExcluding": "6.4.0.4",
"versionStartIncluding": "6.4.0"
}
],
"operator": "OR"
}
]
}
],
"sourceIdentifier": "psirt@cisco.com"
}