CVE-2010-2434: Ponsoftware Explzh

High severity, CVSS 9.3. EPSS: 5.4% chance of exploitation in the next 30 days.

Buffer overflow in Arcext.dll 2.16.1 and earlier in pon software Explzh 5.62 and earlier allows remote attackers to execute arbitrary code via an LZH LHA file with a crafted header that is not properly handled during expansion.

Affected products

• Ponsoftware Explzh: up to and including 5.62

Published 2010-06-25. Last modified 2026-06-16.