CVE-2003-1247: Multiple buffer overflows in H-Sphere WebShell 2.3 allow remote attackers to execute arbitrary code via (1)...

Security readout for executives and security teams

CVE-2003-1247 describes multiple buffer overflows in H-Sphere WebShell 2.3. A remote attacker could trigger them with overly long values and potentially run arbitrary code on the hosting control panel environment. Business risk is mainly for legacy H-Sphere installations still reachable from networks or the internet. Exposure is likely limited to organizations still running H-Sphere WebShell 2.3 or bundled H-Sphere components. The record's affected CPE data is not populated, so inventory must verify product/version names directly rather than relying on scanner metadata alone. Prioritize this where legacy hosting control panels remain exposed. The business concern is remote code execution on infrastructure used to manage hosted sites, but urgency depends on confirmed presence of H-Sphere WebShell 2.3 and external reachability. Mitigation focus: Identify any H-Sphere WebShell 2.3 installations or legacy hosting control panels.; Check the vendor patch reference and archived vendor guidance before changing systems.; Restrict network access to WebShell interfaces until remediation is confirmed..

Prepared

Jun 29, 2026, 17:01 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.