CVE-2026-41135
HighCVSS 7.5Exploitation Probability (EPSS)
Low risk44th percentile - higher than 44% of all known CVEs
Summary
Wersje free5GC przed 1.4.3 zawierają podatność na wyciek pamięci w interfejsie PCF SBI, która pozwala nieautoryzowanym atakującym z dostępem do sieci na powodowanie niekontrolowanego wzrostu pamięci poprzez wysyłanie powtarzających się żądań HTTP do punktu końcowego OAM. Problem wynika z nieprawidłowego zarządzania middleware CORS w obsłudze HTTP.
Risk Assessment
Podatność ta może prowadzić do wyczerpania pamięci i ostatecznie do odmowy usługi (DoS) dla PCF, co uniemożliwia urządzeniom końcowym uzyskanie polityk AM i SM oraz blokuje nawiązywanie sesji 5G. Może to poważnie wpłynąć na dostępność usług sieciowych.
Recommendation
Zaleca się aktualizację do wersji 1.4.3 lub nowszej, która zawiera poprawkę eliminującą tę podatność. Dodatkowo, monitorowanie i ograniczenie liczby żądań do punktu końcowego OAM może pomóc w minimalizacji ryzyka.
Related vulnerabilities
- CVE-2026-115252Critical
The Confection WordPress Cable plugin from 0.4.0 to 0.4.7 does not perform capability or nonce checks before saving its settings and writes one of them unmodified into a standalone PHP file that it then serves. This allows unauthenticated users to execute arbitrary PHP code on the server.
- CVE-2026-124585Critical
A vulnerability was found in Chengdu Feiyuxing Technology VW2100 and VEC10GP devices within the web administration interface. The add_expmac function in var/html/webserver mishandles the mac argument, resulting in OS command injection. The attack can be performed remotely and a public exploit is available.
- CVE-2026-123870Critical
The otterdog webapp evaluates a format-string built from the incoming GitHub webhook JSON body using Python's eval(). When GITHUB_WEBHOOK_SECRET is unset or empty (default None), the HMAC signature check is skipped entirely, allowing an unauthenticated network client to reach the eval() sink with attacker-controlled input and execute arbitrary Python on the host.
- CVE-2026-124580Critical
A vulnerability was found in Chengdu Feiyuxing Technology VW2100 and VEC10GP version 1.0 B-MB3W202-210825-r11775, affecting the handle_wechat_cn_wifi function in var/html/webserver within the Weixin Auth Endpoint component. Manipulation of the extend argument results in OS command injection. The attack can be executed remotely and the exploit has been made public.
- CVE-2026-124577Critical
A weakness has been identified in Intelbras SG 2404 PoE L2+ versions 1.00.70 and 1.00.72, affecting an unknown function in the /EXCU_SHELL file within the Web Management Interface component. Manipulation can lead to improper authentication. The attack can be launched remotely and the exploit has been made publicly available.
- CVE-2026-113364Critical
Buffer overflow in the data receiving process in NEC WebSAM WinShare versions 7.5.0 and earlier, 7.6.0, and 7.7.0 through 7.7.2 on Windows allows a remote unauthenticated attacker to execute arbitrary code with SYSTEM privileges via a crafted packet with a malformed data size value in the protocol header.
- CVE-2026-113363Critical
Improper input validation in the network communication processing in NEC WebSAM WinShare versions 7.2.0 through 7.5.0, 7.6.0, and 7.7.0 through 7.7.2 on Windows allows a remote unauthenticated attacker to execute arbitrary commands with SYSTEM privileges via a crafted network packet sent to the computer running WinShare.
- CVE-2026-124560Critical
A vulnerability was found in D-Link DIR-878 version 1.20B05 in the GetCAPTCHAsetting function of bin/prog.cgi (HNAP Handler component). Manipulating the uid argument results in a heap-based buffer overflow. The attack can be initiated remotely and the exploit has been made public.
- CVE-2026-119506Critical
The Frontend Admin by DynamiApps plugin (acf-frontend-form-element) through version 3.30.1 contains an incorrect privilege assignment vulnerability. The flaw allows an attacker to escalate privileges within the WordPress site.
- CVE-2026-6715Critical
IBM Concert 1.0 through 3.0.1.1 allows an attacker to supply crafted input that is incorporated into an operating system command without adequate validation or sanitization. Successful exploitation allows remote attackers to execute arbitrary commands on the underlying operating system with the privileges of the affected service.
Original NVD description (English source)
free5GC UDR is the Policy Control Function (PCF) for free5GC, an an open-source project for 5th generation (5G) mobile core networks. A memory leak vulnerability in versions prior to 1.4.3 allows any unauthenticated attacker with network access to the PCF SBI interface to cause uncontrolled memory growth by sending repeated HTTP requests to the OAM endpoint. The root cause is a `router.Use()` call inside an HTTP handler that registers a new CORS middleware on every incoming request, permanently growing the Gin router's handler chain. This leads to progressive memory exhaustion and eventual Denial of Service of the PCF, preventing all UEs from obtaining AM and SM policies and blocking 5G session establishment. Version 1.4.3 contains a patch.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS

