CVE-2021-28588
Estado: ModificadaAlta (8.8)—
Adobe RoboHelp Server version 2019.0.9 (and earlier) is affected by a Path Traversal vulnerability when parsing a crafted HTTP POST request. An authenticated attacker could leverage this vulnerability to achieve arbitrary code execution in the context of the current user. Exploitation of this issue does not require user interaction.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Puntuación base: 8.8
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 6.21%
- Percentil entre todas las CVEs puntuadas: 93
- 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 (1)
CWE
- CWE-22
Referencias
JSON original (NVD)
Mostrar
{
"id": "CVE-2021-28588",
"cveTags": [],
"metrics": {
"cvssMetricV2": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"version": "2.0",
"baseScore": 9,
"accessVector": "NETWORK",
"vectorString": "AV:N/AC:L/Au:S/C:C/I:C/A:C",
"authentication": "SINGLE",
"integrityImpact": "COMPLETE",
"accessComplexity": "LOW",
"availabilityImpact": "COMPLETE",
"confidentialityImpact": "COMPLETE"
},
"acInsufInfo": false,
"impactScore": 10,
"baseSeverity": "HIGH",
"obtainAllPrivilege": false,
"exploitabilityScore": 8,
"obtainUserPrivilege": false,
"obtainOtherPrivilege": false,
"userInteractionRequired": false
}
],
"cvssMetricV31": [
{
"type": "Secondary",
"source": "psirt@adobe.com",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 8.8,
"attackVector": "NETWORK",
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"integrityImpact": "HIGH",
"userInteraction": "REQUIRED",
"attackComplexity": "LOW",
"availabilityImpact": "HIGH",
"privilegesRequired": "NONE",
"confidentialityImpact": "HIGH"
},
"impactScore": 5.9,
"exploitabilityScore": 2.8
},
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 8.8,
"attackVector": "NETWORK",
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"integrityImpact": "HIGH",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "HIGH",
"privilegesRequired": "LOW",
"confidentialityImpact": "HIGH"
},
"impactScore": 5.9,
"exploitabilityScore": 2.8
}
]
},
"affected": [
{
"source": "psirt@adobe.com",
"affectedData": [
{
"vendor": "Adobe",
"product": "RoboHelp Server",
"versions": [
{
"status": "affected",
"version": "unspecified",
"versionType": "custom",
"lessThanOrEqual": "2019.0.9"
},
{
"status": "affected",
"version": "unspecified",
"versionType": "custom",
"lessThanOrEqual": "None"
}
]
}
]
}
],
"published": "2021-06-28T15:15:23.423",
"references": [
{
"url": "https://www.zerodayinitiative.com/advisories/ZDI-21-660/",
"tags": [
"Third Party Advisory",
"VDB Entry"
],
"source": "psirt@adobe.com"
},
{
"url": "https://www.zerodayinitiative.com/advisories/ZDI-21-660/",
"tags": [
"Third Party Advisory",
"VDB Entry"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
}
],
"vulnStatus": "Modified",
"weaknesses": [
{
"type": "Secondary",
"source": "psirt@adobe.com",
"description": [
{
"lang": "en",
"value": "CWE-22"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Adobe RoboHelp Server version 2019.0.9 (and earlier) is affected by a Path Traversal vulnerability when parsing a crafted HTTP POST request. An authenticated attacker could leverage this vulnerability to achieve arbitrary code execution in the context of the current user. Exploitation of this issue does not require user interaction."
},
{
"lang": "es",
"value": "Adobe RoboHelp Server versiones 2019.0.9 (y anteriores), está afectada por una vulnerabilidad de Salto de Ruta cuando se analiza una petición HTTP POST diseñada. Un atacante autenticado podría aprovechar esta vulnerabilidad para lograr una ejecución de código arbitrario en el contexto del usuario actual. Una explotación de este problema no requiere la interacción del usuario"
}
],
"lastModified": "2026-06-17T03:46:35.240",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:adobe:robohelp_server:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "E8449959-985B-4840-BD5A-0A69BE901B37",
"versionEndIncluding": "2019.0.9"
}
],
"operator": "OR"
}
]
}
],
"sourceIdentifier": "psirt@adobe.com"
}