CVE-2007-3873

Severity: medium (CVSS 6.9 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2007-08-22 · updated 2026-06-16

Description

Stack-based buffer overflow in vstlib32.dll 1.2.0.1012 in the SSAPI Engine 5.0.0.1066 through 5.2.0.1012 in Trend Micro AntiSpyware 3.5 and PC-Cillin Internet Security 2007 15.0 through 15.3, when the Venus Spy Trap (VST) feature is enabled, allows local users to cause a denial of service (service crash) or execute arbitrary code via a file with a long pathname, which triggers the overflow during a ReadDirectoryChangesW callback notification.

Affected products

Trend Micro Antispyware: 3.5
Trend Micro Pc-Cillin Internet Security 2007: 15.0, 15.2, 15.2_patch, 15.3

References

http://esupport.trendmicro.com/support/consumer/search.do?cmd=displayKC&externalId=PUB-en-1035845
http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=586
http://secunia.com/advisories/26557
http://securitytracker.com/id?1018592
http://www.securityfocus.com/bid/25388
http://www.vupen.com/english/advisories/2007/2935
https://exchange.xforce.ibmcloud.com/vulnerabilities/36144
http://esupport.trendmicro.com/support/consumer/search.do?cmd=displayKC&externalId=PUB-en-1035845
http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=586
http://secunia.com/advisories/26557
http://securitytracker.com/id?1018592
http://www.securityfocus.com/bid/25388

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