CVE-2026-45809— OpenSIPS 观察者信息 XML 生成拒绝服务漏洞
可能的 ATT&CK 技术 1AI
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一、 漏洞 CVE-2026-45809 基础信息
漏洞信息
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Vulnerability Title
OpenSIPS: Denial of Service in watcherinfo XML generation from oversized watcher URI
来源: CVE Program / CVE List V5
Vulnerability Description
OpenSIPS is a Session Initiation Protocol (SIP) server implementation. Versions prior to 3.6.6 and 4.0.0-rc1 contain a denial of service vulnerability in the watcherinfo generation functionality. An attacker can create an oversized watcher entry by sending a SUBSCRIBE Event: presence request with a long From URI, and then trigger presence.winfo watcherinfo XML generation for the same presentity. OpenSIPS copies the stored watcher URI into a fixed-size stack buffer, overflowing it and crashing the process. A remote attacker can crash an OpenSIPS worker in deployments that expose handle_subscribe() and allow watcherinfo (presence.winfo) generation. The issue is configuration-dependent because the presence and presence_xml modules must be loaded and SUBSCRIBE routing must be reachable. This issue has been fixed in versions 3.6.6 and 4.0.0-rc1.
来源: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
来源: CVE Program / CVE List V5
Vulnerability Type
栈缓冲区溢出
来源: CVE Program / CVE List V5
受影响产品
二、漏洞 CVE-2026-45809 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
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三、漏洞 CVE-2026-45809 的情报信息
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CVE-2026-45809 补丁与修复 (2)
CVE-2026-45809 厂商安全公告 (1)
同批安全公告 · OpenSIPS · 2026-08-04 · 共 8 条
| CVE-2026-45538 | 9.8 CRITICAL | OpenSIPS sip_to_json() 栈缓冲区溢出漏洞 |
| CVE-2026-45100 | 9.1 CRITICAL | OpenSIPS Base64编码转换缓冲区溢出漏洞 |
| CVE-2026-45537 | 9.1 CRITICAL | OpenSIPS construct_uri 全局缓冲区溢出漏洞 |
| CVE-2026-45084 | 8.7 HIGH | OpenSIPS presence.handle_publish()拒绝服务漏洞 |
| CVE-2026-46334 | 8.7 HIGH | OpenSIPS QoS SDP克隆拒绝服务漏洞 |
| CVE-2026-45103 | 7.5 HIGH | OpenSIPS SIP消息 smuggle漏洞：TCP Content-Length整数溢出 |
| CVE-2026-45705 | 5.3 MEDIUM | OpenSIPS 多部分体边界解析越界读取漏洞 |
IV. Related Vulnerabilities
V. Comments for CVE-2026-45809
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