What’s Vulnerable › Vulnerabilities

CVE-2016-2233

• Severity: high (CVSS 7.5 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 34.1% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2017-01-18 · updated 2026-06-17
• Weakness: CWE-119

Description

Stack-based buffer overflow in the inbound_cap_ls function in common/inbound.c in HexChat 2.10.2 allows remote IRC servers to cause a denial of service (crash) via a large number of options in a CAP LS message.

Affected products

• Hexchat Project Hexchat: 2.10.2

References

• http://packetstormsecurity.com/files/136563/Hexchat-IRC-Client-2.11.0-CAP-LS-Handling-Buffer-Overflow.html
• http://www.securityfocus.com/bid/95920
• https://www.exploit-db.com/exploits/39657/
• http://packetstormsecurity.com/files/136563/Hexchat-IRC-Client-2.11.0-CAP-LS-Handling-Buffer-Overflow.html
• http://www.securityfocus.com/bid/95920
• https://www.exploit-db.com/exploits/39657/

Get alerted when CVE-2016-2233 or the next vulnerability affects your stack