CVE-2009-20008

Green Dam Youth Escort version 3.17 is vulnerable to a stack-based buffer overflow when processing overly long URLs. The flaw resides in the URL filtering component, which fails to properly validate input length before copying user-supplied data into a fixed-size buffer. A remote attacker can exploit this vulnerability by enticing a user to visit a specially crafted webpage containing a long URL, resulting in arbitrary code execution.

CVSS 4.0

8.6CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

EPSS

1.5% chance of exploitation in the next 30 days; higher than 73% of CVEs (scores of 2026-10-25)

CWE

CWE-121

Published

2025-08-30

Modified

2026-10-01

Record from

the NVD, synced 2026-10-19

References

• https://en.wikipedia.org/wiki/Green_Dam_Youth_Escort
• https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/windows/browser/greendam_url.rb
• https://web.archive.org/web/20110426190759/http://www.cse.umich.edu/~jhalderm/pub/gd/
• https://www.exploit-db.com/exploits/8938
• https://www.exploit-db.com/exploits/8969

Check your stackJSON