CVE-2010-1885
Estado: ModificadaAlta (9.3)—💥 Exploit
The MPC::HexToNum function in helpctr.exe in Microsoft Windows Help and Support Center in Windows XP and Windows Server 2003 does not properly handle malformed escape sequences, which allows remote attackers to bypass the trusted documents whitelist (fromHCP option) and execute arbitrary commands via a crafted hcp:// URL, aka "Help Center URL Validation Vulnerability."
CVSS
- Versión: 2.0
- Vector: AV:N/AC:M/Au:N/C:C/I:C/A:C
- Puntuación base: 9.3
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 71%
- Percentil entre todas las CVEs puntuadas: 99
- 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.
- Módulo de Metasploit (exploit fiable y al alcance de cualquiera) · Microsoft Help Center XSS and Command Execution
- Publicado en Exploit-DB · Microsoft Help Center - Cross-Site Scripting / Command Execution (MS10-042) (Metasploit) (20/9/2010)
- Publicado en Exploit-DB · Microsoft Windows Help Centre Handles - Malformed Escape Sequences Incorrectly (MS03-044) (10/6/2010)
Tecnologías afectadas (3)
CWE
- CWE-78
Referencias
- http://archives.neohapsis.com/archives/fulldisclosure/2010-06/0197.html
- http://blogs.technet.com/b/msrc/archive/2010/06/10/windows-help-vulnerability-disclosure.aspx
- http://blogs.technet.com/b/srd/archive/2010/06/10/help-and-support-center-vulnerability-full-disclosure-posting.aspx
- http://secunia.com/advisories/40076
- http://www.exploit-db.com/exploits/13808
- http://www.kb.cert.org/vuls/id/578319
- http://www.microsoft.com/technet/security/advisory/2219475.mspx
- http://www.securityfocus.com/archive/1/511774/100/0/threaded
- http://www.securityfocus.com/archive/1/511783/100/0/threaded
- http://www.securityfocus.com/bid/40725
- http://www.securitytracker.com/id?1024084
- http://www.us-cert.gov/cas/techalerts/TA10-194A.html
- http://www.vupen.com/english/advisories/2010/1417
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2010/ms10-042
- https://exchange.xforce.ibmcloud.com/vulnerabilities/59267
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11733
- http://archives.neohapsis.com/archives/fulldisclosure/2010-06/0197.html
- http://blogs.technet.com/b/msrc/archive/2010/06/10/windows-help-vulnerability-disclosure.aspx
- http://blogs.technet.com/b/srd/archive/2010/06/10/help-and-support-center-vulnerability-full-disclosure-posting.aspx
- http://secunia.com/advisories/40076
- http://www.exploit-db.com/exploits/13808
- http://www.kb.cert.org/vuls/id/578319
- http://www.microsoft.com/technet/security/advisory/2219475.mspx
- http://www.securityfocus.com/archive/1/511774/100/0/threaded
- http://www.securityfocus.com/archive/1/511783/100/0/threaded
- http://www.securityfocus.com/bid/40725
- http://www.securitytracker.com/id?1024084
- http://www.us-cert.gov/cas/techalerts/TA10-194A.html
- http://www.vupen.com/english/advisories/2010/1417
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2010/ms10-042
- https://exchange.xforce.ibmcloud.com/vulnerabilities/59267
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11733
JSON original (NVD)
Mostrar
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"value": "The MPC::HexToNum function in helpctr.exe in Microsoft Windows Help and Support Center in Windows XP and Windows Server 2003 does not properly handle malformed escape sequences, which allows remote attackers to bypass the trusted documents whitelist (fromHCP option) and execute arbitrary commands via a crafted hcp:// URL, aka \"Help Center URL Validation Vulnerability.\""
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"lastModified": "2026-06-16T23:19:31.510",
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