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.
结论预警: CVE-2016-2233 综合评估为高可利用风险（79.6/100）：CVSS 技术影响为高级，利用概率偏高（EPSS 34.89%，百分位 98%） 核心证据: 已收录 3 条公开利用参考（Exploit-DB）。 强制指令: 存在公开利用—请排查暴露面、落实缓解措施并优先修补。
风险随态势动态变化；本站持续评估并同步更新本页展示内容。
| EDB-ID | 来源 | 类型 | 公开时间 | 链接 |
|---|---|---|---|---|
| 39657 | exploit_db | edb | 2016-04-04 | Exploit-DB ↗ |
| — | nvd_ref | exploit_tag | Exploit-DB ↗ | |
| — | nvd_ref | exploit_tag | Exploit-DB ↗ |
EPSS 日更估计相对被利用可能性；百分位表示该 CVE 在已评分漏洞中的相对排名（越高表示相对更严重）。
| # | 日期 | 旧 EPSS 分数 | 新 EPSS 分数 | 变化（新 − 旧） |
|---|---|---|---|---|
| 1 | 2026-07-07 | 34.65% | 34.89% | +0.24% |
| 2 | 2026-06-15 | 13.34% | 34.65% | +21.31% |
| 3 | 2026-05-22 | — | 13.34% | — |
完整 EPSS 历史 （共 21 条）
该 CVE 的 CVSS 指标。
| 底座分 | 版本 | 严重度 | 向量 | 可利用性 | 影响 | 分数来源 |
|---|---|---|---|---|---|---|
| 7.5 | 3.0 | HIGH |
|
3.9 | 3.6 | [email protected] |
| 5.0 | 2.0 | MEDIUM |
|
10.0 | 2.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
low | CVE-2016-2233 low priority: Debian including 1 source packages (hexchat), 4 status rows across 4 suites (bookworm, bullseye, sid, trixie): resolved 4. | https://security-tracker.debian.org/tracker/CVE-2016-2233 |
suse
|
medium | CVE-2016-2233 severity moderate: SUSE including 6 source package names (hexchat, hexchat-devel, hexchat-lang, hexchat-plugins-lua, hexchat-plugins-perl, hexchat-plugins-python3), 14 product×package rows across 5 product lines (SUSE Linux Enterprise Desktop 12 SP2, SUSE Linux Enterprise Workstation Extension 12 SP2, … (5 product lines)): Known Not Affected 14. | https://www.suse.com/security/cve/CVE-2016-2233/ |
ubuntu
|
low | CVE-2016-2233 low priority: Ubuntu including 3 source packages (hexchat, xchat, xchat-gnome), 69 status rows across 23 suites (artful, bionic, cosmic, disco, eoan, focal, groovy, hirsute, impish, jammy, kinetic, lunar, mantic, noble, oracular, plucky, precise, questing, trusty, upstream, xenial, yakkety, zesty): DNE 36, not-affected 25, ignored 3, needed 2, needs-triage 2, released 1. | https://ubuntu.com/security/CVE-2016-2233 |
| 厂商 | 产品 | 版本 | 原始 CPE |
|---|---|---|---|
| hexchat_project | hexchat | 2.10.2 | cpe:2.3:a:hexchat_project:hexchat:2.10.2:*:*:*:*:*:*:* |
| URL | 标签 |
|---|---|
| http://packetstormsecurity.com/files/136563/Hexchat-IRC-Client-2.11.0-CAP-LS-Handling-Buffer-Overflow.html | Exploit Third Party Advisory VDB Entry |
| http://www.securityfocus.com/bid/95920 | |
| https://www.exploit-db.com/exploits/39657/ | Exploit Third Party Advisory VDB Entry |