CVE-2025-40540
CriticalSummary
W Serv-U występuje podatność typu confusion, która po wykorzystaniu umożliwia złośliwemu aktorowi wykonanie dowolnego kodu natywnego z uprawnieniami konta uprzywilejowanego. Wymaga to jednak posiadania uprawnień administracyjnych do nadużycia.
Risk Assessment
Na systemach Windows ryzyko zostało ocenione jako średnie, ponieważ usługi często działają domyślnie pod mniej uprzywilejowanymi kontami serwisowymi.
Recommendation
Zaleca się ograniczenie dostępu do kont administracyjnych oraz monitorowanie i aktualizację oprogramowania Serv-U w celu zminimalizowania ryzyka wykorzystania tej podatności.
Related vulnerabilities
- CVE-2026-93945Critical
Deserialization of Untrusted Data vulnerability in the Balance theme by Axiomthemes allows Object Injection. This issue affects Balance from n/a through 1.12.0.
- CVE-2026-93944Critical
Deserialization of Untrusted Data vulnerability in the Camelia theme by ThemeREX Group allows Object Injection. This issue affects Camelia from n/a through 1.2.15.
- CVE-2026-93943Critical
Deserialization of Untrusted Data vulnerability in the Convex theme by ThemeREX Group allows Object Injection. This issue affects Convex from n/a through 1.16.0.
- CVE-2026-93942Critical
Deserialization of Untrusted Data vulnerability in the Dwell theme by ThemeREX Group allows Object Injection. This issue affects Dwell from n/a through 1.16.0.
- CVE-2026-93941Critical
Deserialization of Untrusted Data vulnerability in the Edema theme by ThemeREX Group allows Object Injection. This issue affects Edema from n/a through 1.2.2.2.
- CVE-2026-93940Critical
Deserialization of Untrusted Data vulnerability in the Greeny theme by ThemeREX Group allows Object Injection. This issue affects Greeny from n/a through 2.10.0.
- CVE-2026-93938Critical
Deserialization of Untrusted Data vulnerability in the Hogwords theme by ThemeREX Group allows Object Injection. This issue affects Hogwords from n/a through 1.2.7.
- CVE-2026-93937Critical
Deserialization of Untrusted Data vulnerability in the Hygia theme by ThemeREX Group allows Object Injection. This issue affects Hygia from n/a through 1.21.0.
- CVE-2026-93936Critical
Deserialization of Untrusted Data vulnerability in the IPharm theme by ThemeREX Group allows Object Injection. This issue affects IPharm from n/a through 1.2.4.
- CVE-2026-93935Critical
Deserialization of Untrusted Data vulnerability in the Let's Play theme by ThemeREX Group allows Object Injection. This issue affects Let's Play from n/a through 1.1.15.
Original NVD description (English source)
A type confusion vulnerability exists in Serv-U which when exploited, gives a malicious actor the ability to execute arbitrary native code as privileged account. This issue requires administrative privileges to abuse. On Windows deployments, the risk is scored as a medium because services frequently run under less-privileged service accounts by default.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS