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Critical severity9.8NVD Advisory· Published Jun 12, 2017· Updated Jun 17, 2026

CVE-2017-9544

CVE-2017-9544

Description

There is a remote stack-based buffer overflow (SEH) in register.ghp in EFS Software Easy Chat Server versions 2.0 to 3.1. By sending an overly long username string to registresult.htm for registering the user, an attacker may be able to execute arbitrary code.

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Affected products

2
  • EFS Software/Easy Chat Server2 versions
    cpe:2.3:a:echatserver:easy_chat_server:*:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:a:echatserver:easy_chat_server:*:*:*:*:*:*:*:*range: >=2.0,<=3.1
    • (no CPE)range: >=2.0 <=3.1

Patches

Vulnerability mechanics

References

1

News mentions

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