CVE-2026-34617
Adobe Connect versions 2025.3, 12.10 and earlier are affected by a Cross-Site Scripting (XSS) vulnerability that could result in privilege escalation. A low-privileged attacker could exploit this vulnerability to inject malicious scripts into a web page, potentially gaining elevated access or control over the victim's account or session. Exploitation of this issue requires user interaction in that a victim must visit a maliciously crafted URL or interact with a compromised web page. Scope is changed.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N
- Puntuación base: 8.7
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.70%
- Percentil entre todas las CVEs puntuadas: 52
- 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).
🎯 Técnicas ATT&CK
Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.
- Explotación
T1189Drive-by Compromiseinitial access95 % - Impacto principal
T1078.001Default Accountsstealth · persistence · privilege escalation · initial access85 % - Impacto secundario
T1059.007JavaScriptexecution80 %
XSS en Adobe Connect (CWE-79) con UI:R explotado vía URL malicioso. Impacto: escalada de privilegios y control de sesión de usuario víctima (C:H, I:H, S:C).
Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.
🛡️ Mitigaciones ATT&CK que cubren estas técnicas
Tecnologías afectadas (2)
CWE
- CWE-79
Referencias
JSON original (NVD)
Mostrar
{
"id": "CVE-2026-34617",
"cveTags": [],
"metrics": {
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2026-34617",
"role": "CISA Coordinator",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "total"
}
],
"version": "2.0.3",
"timestamp": "2026-04-14T19:10:18.319862Z"
}
}
],
"cvssMetricV31": [
{
"type": "Secondary",
"source": "psirt@adobe.com",
"cvssData": {
"scope": "CHANGED",
"version": "3.1",
"baseScore": 8.7,
"attackVector": "NETWORK",
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N",
"integrityImpact": "HIGH",
"userInteraction": "REQUIRED",
"attackComplexity": "LOW",
"availabilityImpact": "NONE",
"privilegesRequired": "LOW",
"confidentialityImpact": "HIGH"
},
"impactScore": 5.8,
"exploitabilityScore": 2.3
}
]
},
"affected": [
{
"source": "psirt@adobe.com",
"affectedData": [
{
"vendor": "Adobe",
"product": "Adobe Connect",
"versions": [
{
"status": "affected",
"version": "0",
"versionType": "semver",
"lessThanOrEqual": "12.10"
},
{
"status": "unaffected",
"version": "12.11",
"versionType": "semver"
}
],
"defaultStatus": "unaffected"
},
{
"vendor": "Adobe",
"product": "Adobe Connect Desktop Application",
"versions": [
{
"status": "affected",
"version": "0",
"versionType": "custom",
"lessThanOrEqual": "2025.3"
},
{
"status": "unaffected",
"version": "2025.9",
"versionType": "custom"
}
],
"defaultStatus": "unaffected"
}
]
}
],
"published": "2026-04-14T18:17:36.540",
"references": [
{
"url": "https://helpx.adobe.com/security/products/connect/apsb26-37.html",
"tags": [
"Vendor Advisory"
],
"source": "psirt@adobe.com"
}
],
"vulnStatus": "Analyzed",
"weaknesses": [
{
"type": "Secondary",
"source": "psirt@adobe.com",
"description": [
{
"lang": "en",
"value": "CWE-79"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Adobe Connect versions 2025.3, 12.10 and earlier are affected by a Cross-Site Scripting (XSS) vulnerability that could result in privilege escalation. A low-privileged attacker could exploit this vulnerability to inject malicious scripts into a web page, potentially gaining elevated access or control over the victim's account or session. Exploitation of this issue requires user interaction in that a victim must visit a maliciously crafted URL or interact with a compromised web page. Scope is changed."
},
{
"lang": "es",
"value": "Las versiones 2025.3, 12.10 y anteriores de Adobe Connect están afectadas por una vulnerabilidad de cross-site scripting (XSS) que podría resultar en escalada de privilegios. Un atacante con pocos privilegios podría explotar esta vulnerabilidad para inyectar scripts maliciosos en una página web, obteniendo potencialmente acceso elevado o control sobre la cuenta o sesión de la víctima. La explotación de este problema requiere interacción del usuario, en el sentido de que una víctima debe visitar una URL creada con fines maliciosos o interactuar con una página web comprometida. El alcance ha cambiado."
}
],
"lastModified": "2026-08-28T00:17:15.653",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:adobe:connect:*:*:*:*:*:-:*:*",
"vulnerable": true,
"matchCriteriaId": "4A1D88E9-612C-49B1-8521-F2258D4D74CA",
"versionEndExcluding": "12.11"
}
],
"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:connect_desktop_application:*:*:*:*:*:macos:*:*",
"vulnerable": true,
"matchCriteriaId": "185BF6E9-82FC-45E0-A64E-03FB923F34AD",
"versionEndIncluding": "2025.3"
},
{
"criteria": "cpe:2.3:a:adobe:connect_desktop_application:*:*:*:*:*:windows:*:*",
"vulnerable": true,
"matchCriteriaId": "783AAAA9-E68B-43E3-86A3-5227E27392A5",
"versionEndExcluding": "2025.9.15"
}
],
"operator": "OR"
}
]
}
],
"sourceIdentifier": "psirt@adobe.com"
}