CVE-1999-1577 medium

Description

Buffer overflow in HHOpen ActiveX control (hhopen.ocx) 1.0.0.1 for Internet Explorer 4.01 and 5 allows remote attackers to execute arbitrary commands via long arguments to the OpenHelp method.

Indicators of Compromise (0)

No indicators of compromise on this threat.

References (5)

• cve@mitre.org NVD Recent CVEs
• cve@mitre.org NVD Recent CVEs
• cve@mitre.org NVD Recent CVEs
• cve@mitre.org NVD Recent CVEs
• NVD detail: CVE-1999-1577 NVD Recent CVEs

  Buffer overflow in HHOpen ActiveX control (hhopen.ocx) 1.0.0.1 for Internet Explorer 4.01 and 5 allows remote attackers to execute arbitrary commands via long arguments to the OpenHelp method.

• Patch Management Best Practices for 2025 | RSI Security
  web:blog.rsisecurity.com

  The Vulnerability Management Lifecycle Patch management is a vital component of the broader vulnerability management lifecycle, which includes: Discovery: Identify all systems and assets. Assessment: Evaluate severity and exploitability. Prioritization: Align risk levels with business impact. Remediation : Apply patches or compensating controls. Verification: Confirm successful patch deployment ...

  2026-05-22 20:37 UTC
• CVE Vault - CVE Database & Security Research Hub
  web:cvevault.com

  CVE Vault - Search and explore Common Vulnerabilities and Exposures ( CVE ) database. Find security vulnerabilities by CVE ID, vendor, severity, and year. Stay secure with comprehensive CVE information.

  2026-05-22 20:37 UTC
• AI drives new debate around CISA software patching deadlines
  web:federalnewsnetwork.com

  AI drives new debate around CISA software patching deadlines CISA this year has already started accelerating the deadlines for agencies to patch software bugs posted to the Known Exploited Vulnerabilities (KEV) catalog.

  2026-05-22 20:37 UTC
• Nvd - Cve-2025-5777
  web:nvd.nist.gov

  An official website of the United States government Here's how you know

  2026-05-22 20:37 UTC
• Security Update Guide - Microsoft
  web:portal.msrc.microsoft.com

  The Security Update Guide provides information on the latest Microsoft security updates, helping users understand and address potential vulnerabilities effectively.

  2026-05-22 20:37 UTC
• DoD Patch Repository: Compliance, Tools, & Best Practices Ultimate Guide
  web:scanoncomputer.com

  Explore advanced DoD patch repository and management strategies, tools, and compliance. Stay secure with real-world guides, threat intelligence, and global best practices.

  2026-05-22 20:37 UTC
• Google Translate
  web:translate.google.com

  Google's service, offered free of charge, instantly translates words, phrases, and web pages between English and over 100 other languages.

  2026-05-22 20:37 UTC
• WhatsApp Web
  web:web.whatsapp.com

  Log in to WhatsApp Web for simple, reliable and private messaging on your desktop. Send and receive messages and files with ease, all for free.

  2026-05-22 20:37 UTC
• PDF CISA Insights - Cyber: Remediate Vulnerabilities for Internet ...
  web:www.cisa.gov

  If vulnerabilities cannot be remediated within the recommended timeframes, develop a remediation plan for action and coordination across the organization. The remediation plan should include: Vulnerability remediation constraints Interim mitigation actions to overcome constraints Final actions required to remediate vulnerability

  2026-05-22 20:37 UTC
• CVE: Common Vulnerabilities and Exposures
  web:www.cve.org

  At cve .org, we provide the authoritative reference method for publicly known information-security vulnerabilities and exposures

  2026-05-22 20:37 UTC

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