CVE-2026-106805
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.
在 Free5GC v4.2.3 中存在一个资源耗尽漏洞，问题出现在 PFCP（PFCP 会话建立）失败处理过程中。当 SMF 未收到来自 UPF 的 PFCP 会话建立响应时，已分配的 UE IP 地址资源未能被正确释放。因此，重复的会话建立失败尝试会导致 UE IP 地址池耗尽，从而阻止新的用户设备（UE）建立 PDU 会话，最终引发拒绝服务（DoS）攻击。
Possible ATT&CK Techniques 1 AI
T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2026-106805
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A resource exhaustion issue exists in Free5GC v4.2.3 during PFCP Session Establishment failure handling. When the SMF does not receive a PFCP Session Establishment Response from the UPF, allocated UE IP address resources are not properly released. Repeated failed session establishment attempts can therefore exhaust the UE IP address pool, preventing new UEs from establishing PDU sessions and 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-2026-106805
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Other References for CVE-2026-106805 (3)
Same Patch Batch · n/a · 2026-11-02 · 11 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-2026-106803 | Kamailio 6.1.x ims_registrar_pcscf 栈缓冲区溢出 | |
| 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 |