CVE-2010-2434

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.

Published: 2010-06-25 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2010-2434 is rated High Risk (69.3/100): CVSS Critical severity, with high exploitation likelihood (EPSS 5.36%, 92th percentile). EPSS ranks this CVE among the most likely to be exploited in the near term. High exploitation likelihood—assess exposure and prioritize remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2010-2434

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 5.33% 5.36% +0.03%
2 2025-09-18 6.80% 5.33% -1.46%
3 2025-03-30 — 6.80% —

Full EPSS history (11 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2010-2434

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
9.3 2.0 HIGH
AV:N/AC:M/Au:N/C:C/I:C/A:C Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:C)
Complete confidentiality impact.
Integrity impact (I:C)
Complete integrity impact.
Availability impact (A:C)
Complete availability impact.
 8.6 10.0 [email protected]

Weakness enumeration for CVE-2010-2434

Affected software / configurations for CVE-2010-2434

Vendor Product Version Raw CPE
ponsoftware explzh <= 5.62 cpe:2.3:a:ponsoftware:explzh:*:*:*:*:*:*:*:*

References for CVE-2010-2434

URL Tags
http://jvn.jp/en/jp/JVN34729123/index.html Third Party Advisory Vendor Advisory
http://jvndb.jvn.jp/ja/contents/2010/JVNDB-2010-000026.html Third Party Advisory VDB Entry
http://osvdb.org/65666 Broken Link
http://secunia.com/advisories/40324 Third Party Advisory Vendor Advisory
http://www.ponsoftware.com/archiver/bug.htm#lzh_bufover Vendor Advisory
http://www.securityfocus.com/bid/41025 Third Party Advisory VDB Entry
https://exchange.xforce.ibmcloud.com/vulnerabilities/59624 Third Party Advisory VDB Entry
cvelogic Threat Intelligence