CVE-2016-2233 EXPLOIT
7.5
HIGH · CVSS 3.0 · EPSS 34.9% (pctl 98)
Patch early
A public exploit exists.
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.
Scoring
| CVSS | 7.5 (HIGH, v3.0) |
|---|---|
| Vector | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| EPSS | 34.89% — more likely to be exploited than 98% of all CVEs |
| Weakness | CWE-119 |
| On CISA KEV | no |
| Public exploit | yes |
| Published | 2017-01-18 |
| Last modified | 2026-06-17 |
Affected (1)
| Vendor | Product |
|---|---|
| hexchat project | hexchat |
Public exploits
| Source | Title | Date |
|---|---|---|
| exploit-db | Hexchat IRC Client 2.11.0 - CAP LS Handling Buffer Overflow | 2016-04-04 |
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/
→ the Explorer · watch your stack · NVD