CVE-2026-106803
Quick assessment
Affected
n/a n/a
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Kamailio v6.1.3 和 v6.1.4 版本的 模块中存在一个基于栈的缓冲区溢出漏洞。在处理特制的 格式的 NOTIFY 消息时， 函数会将攻击者控制的、来自 参数的端口值，未经长度验证地复制到一个固定为 5 字节的栈缓冲区中。未认证的远程攻击者可利用此漏洞触发栈破坏，导致 P-CSCF 进程终止，从而引发拒绝服务（DoS）攻击。
Possible ATT&CK Techniques 1 AI
T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-106803
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A stack-based buffer overflow exists in Kamailio v6.1.3 and v6.1.4 in the ims_registrar_pcscf module. When processing a crafted application/reginfo+xml NOTIFY message, process_contact() copies an attacker-controlled port value from the alias parameter into a fixed 5-byte stack buffer without validating its length. An unauthenticated remote attacker can trigger stack corruption and terminate the P-CSCF process, resulting in denial of service.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| - | n/a | n/a | - |
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II. Public POCs for CVE-2026-106803
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Other References for CVE-2026-106803 (4)
Same Patch Batch · n/a · 2026-11-02 · 12 CVEs total
| CVE-2025-62819 | Keyfactor EJBCA 9.3.3 前版本证书续期授权绕过漏洞 | |
| CVE-2026-106807 | open5GS v2.8.0 PFCP 资源耗尽导致拒绝服务 | |
| CVE-2026-106805 | Free5GC v4.2.3 PFCP 会话建立资源耗尽漏洞 | |
| CVE-2026-106804 | Kamailio v6.1.x ims_qos_npn 模块栈溢出漏洞 | |
| CVE-2026-117068 | OpenAirInterface v2.2.1 整数下溢导致拒绝服务 | |
| CVE-2026-117067 | OAI v2.2.1 N2 SCTP 越界访问导致拒绝服务漏洞 | |
| CVE-2026-106806 | Open5GS v2.8.0 HTTP/2 SBI 内存耗尽拒绝服务漏洞 | |
| CVE-2026-106808 | OpenAirInterface v2.2.1 UDM 栈缓冲区溢出漏洞 | |
| CVE-2026-117069 | OpenAirInterface CN5G AMF v2.2.1 整数截断漏洞 | |
| CVE-2026-117127 | GleezCMS v1.2.0 目录遍历漏洞 | |
| CVE-2026-117082 | Sercomm AOT-4221SR 4.6 UPnP 认证绕过漏洞 |