CVE-2021-45067
Estado: ModificadaMedia (5.5)—💥 PoC
Acrobat Reader DC version 21.007.20099 (and earlier), 20.004.30017 (and earlier) and 17.011.30204 (and earlier) are affected by an Access of Memory Location After End of Buffer vulnerability that could lead to disclosure of sensitive memory. An attacker could leverage this vulnerability to bypass mitigations such as ASLR. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
- Puntuación base: 5.5
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 3.53%
- Percentil entre todas las CVEs puntuadas: 89
- Fecha de la puntuación: 7/10/2026
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).
💥 Exploits públicos
Hay código de explotación o plantillas de detección públicos. No es lo mismo que explotación activa confirmada (KEV), pero aumenta el riesgo: parchee con prioridad.
- Prueba de concepto en GitHub (no verificada) · Lista de pruebas de concepto en GitHub
⚠️ Las pruebas de concepto de GitHub no están verificadas: algunas son falsas o contienen malware. No las ejecute nunca fuera de un laboratorio aislado.
Tecnologías afectadas (4)
CWE
- CWE-788
- CWE-119
Referencias
JSON original (NVD)
Mostrar
{
"id": "CVE-2021-45067",
"cveTags": [],
"metrics": {
"cvssMetricV2": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"version": "2.0",
"baseScore": 4.3,
"accessVector": "NETWORK",
"vectorString": "AV:N/AC:M/Au:N/C:P/I:N/A:N",
"authentication": "NONE",
"integrityImpact": "NONE",
"accessComplexity": "MEDIUM",
"availabilityImpact": "NONE",
"confidentialityImpact": "PARTIAL"
},
"acInsufInfo": false,
"impactScore": 2.9,
"baseSeverity": "MEDIUM",
"obtainAllPrivilege": false,
"exploitabilityScore": 8.6,
"obtainUserPrivilege": false,
"obtainOtherPrivilege": false,
"userInteractionRequired": true
}
],
"cvssMetricV31": [
{
"type": "Secondary",
"source": "psirt@adobe.com",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 5.5,
"attackVector": "LOCAL",
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N",
"integrityImpact": "NONE",
"userInteraction": "REQUIRED",
"attackComplexity": "LOW",
"availabilityImpact": "NONE",
"privilegesRequired": "NONE",
"confidentialityImpact": "HIGH"
},
"impactScore": 3.6,
"exploitabilityScore": 1.8
},
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 5.5,
"attackVector": "LOCAL",
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N",
"integrityImpact": "NONE",
"userInteraction": "REQUIRED",
"attackComplexity": "LOW",
"availabilityImpact": "NONE",
"privilegesRequired": "NONE",
"confidentialityImpact": "HIGH"
},
"impactScore": 3.6,
"exploitabilityScore": 1.8
}
]
},
"affected": [
{
"source": "psirt@adobe.com",
"affectedData": [
{
"vendor": "Adobe",
"product": "Acrobat Reader",
"versions": [
{
"status": "affected",
"version": "unspecified",
"versionType": "custom",
"lessThanOrEqual": "21.007.20099"
},
{
"status": "affected",
"version": "unspecified",
"versionType": "custom",
"lessThanOrEqual": "20.004.30017"
},
{
"status": "affected",
"version": "unspecified",
"versionType": "custom",
"lessThanOrEqual": "17.011.30204"
},
{
"status": "affected",
"version": "unspecified",
"versionType": "custom",
"lessThanOrEqual": "None"
}
]
}
]
}
],
"published": "2022-01-14T20:15:14.813",
"references": [
{
"url": "https://helpx.adobe.com/security/products/acrobat/apsb22-01.html",
"tags": [
"Vendor Advisory"
],
"source": "psirt@adobe.com"
},
{
"url": "https://helpx.adobe.com/security/products/acrobat/apsb22-01.html",
"tags": [
"Vendor Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
}
],
"vulnStatus": "Modified",
"weaknesses": [
{
"type": "Secondary",
"source": "psirt@adobe.com",
"description": [
{
"lang": "en",
"value": "CWE-788"
}
]
},
{
"type": "Primary",
"source": "nvd@nist.gov",
"description": [
{
"lang": "en",
"value": "CWE-119"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Acrobat Reader DC version 21.007.20099 (and earlier), 20.004.30017 (and earlier) and 17.011.30204 (and earlier) are affected by an Access of Memory Location After End of Buffer vulnerability that could lead to disclosure of sensitive memory. An attacker could leverage this vulnerability to bypass mitigations such as ASLR. Exploitation of this issue requires user interaction in that a victim must open a malicious file."
},
{
"lang": "es",
"value": "Acrobat Reader DC versiones 21.007.20099 (y anteriores), versiones 20.004.30017 (y anteriores) y versiones 17.011.30204 (y anteriores), están afectadas por una vulnerabilidad de acceso a una ubicación de memoria tras el final del búfer que podría conllevar a una divulgación de memoria confidencial. Un atacante podría aprovechar esta vulnerabilidad para omitir mitigaciones como ASLR. Es requerida una interacción del usuario para explotar este problema, ya que la víctima debe abrir un archivo malicioso"
}
],
"lastModified": "2026-06-17T04:13:07.570",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:adobe:acrobat_dc:*:*:*:*:continuous:*:*:*",
"vulnerable": true,
"matchCriteriaId": "C04DBBF5-9A81-4E5B-974A-396010EBA028",
"versionEndIncluding": "21.007.20099",
"versionStartIncluding": "15.008.20082"
},
{
"criteria": "cpe:2.3:a:adobe:acrobat_reader_dc:*:*:*:*:continuous:*:*:*",
"vulnerable": true,
"matchCriteriaId": "CDCA2F06-AE23-4D8F-9A63-6FBF18234AF7",
"versionEndIncluding": "21.007.20099",
"versionStartIncluding": "15.008.20082"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "A2572D17-1DE6-457B-99CC-64AFD54487EA"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:adobe:acrobat:*:*:*:*:classic:*:*:*",
"vulnerable": true,
"matchCriteriaId": "305A4560-3F56-4575-B897-AE9CCDB1CE7E",
"versionEndIncluding": "17.011.30204",
"versionStartIncluding": "17.011.30059"
},
{
"criteria": "cpe:2.3:a:adobe:acrobat:*:*:*:*:classic:*:*:*",
"vulnerable": true,
"matchCriteriaId": "DE9E69F3-AE25-43E6-B878-71A3D9BF1CFD",
"versionEndIncluding": "20.004.30017",
"versionStartIncluding": "20.001.30005"
},
{
"criteria": "cpe:2.3:a:adobe:acrobat_reader:*:*:*:*:classic:*:*:*",
"vulnerable": true,
"matchCriteriaId": "4A356D60-4264-4C61-B9AA-1458A1814812",
"versionEndIncluding": "17.011.30204",
"versionStartIncluding": "17.011.30059"
},
{
"criteria": "cpe:2.3:a:adobe:acrobat_reader:*:*:*:*:classic:*:*:*",
"vulnerable": true,
"matchCriteriaId": "C1FA4209-FFE0-4B00-AEF2-6B2957A1BA82",
"versionEndIncluding": "20.004.30017",
"versionStartIncluding": "20.001.30005"
}
],
"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"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:adobe:acrobat_dc:*:*:*:*:continuous:*:*:*",
"vulnerable": true,
"matchCriteriaId": "C04DBBF5-9A81-4E5B-974A-396010EBA028",
"versionEndIncluding": "21.007.20099",
"versionStartIncluding": "15.008.20082"
},
{
"criteria": "cpe:2.3:a:adobe:acrobat_reader_dc:*:*:*:*:continuous:*:*:*",
"vulnerable": true,
"matchCriteriaId": "CDCA2F06-AE23-4D8F-9A63-6FBF18234AF7",
"versionEndIncluding": "21.007.20099",
"versionStartIncluding": "15.008.20082"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "387021A0-AF36-463C-A605-32EA7DAC172E"
}
],
"operator": "OR"
}
],
"operator": "AND"
}
],
"sourceIdentifier": "psirt@adobe.com"
}