CVE-2017-9544

high-risk
Published 2017-06-12

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.

Do I need to act?

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79.6% chance of exploitation in next 30 days
EPSS score — higher than 20% of all CVEs
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
9
CVSS 9.8/10 Critical
NETWORK / LOW complexity

Affected Products (1)

Easy Chat Server

Affected Vendors

Echatserver

References (2)

Exploit https://www.exploit-db.com/exploits/42155/
Exploit https://www.exploit-db.com/exploits/42155/
57
/ 100
high-risk
Severity 32/34 · Critical
Exploitability 20/34 · Moderate
Exposure 5/34 · Minimal