CVE-2026-40572
CriticalSummary
NovumOS to niestandardowy 32-bitowy system operacyjny napisany w Zig i asemblerze x86. W wersjach przed 0.24, wywołanie systemowe 15 (MemoryMapRange) pozwala procesom w trybie użytkownika na mapowanie dowolnych zakresów adresów wirtualnych do ich przestrzeni adresowej bez weryfikacji, co może prowadzić do eskalacji uprawnień.
Risk Assessment
Lokalny atakujący może wykorzystać tę podatność do modyfikacji obsługi przerwań jądra, co stwarza poważne zagrożenie dla integralności systemu i bezpieczeństwa danych.
Recommendation
Zaleca się aktualizację do wersji 0.24 lub nowszej, aby usunąć tę podatność i zabezpieczyć system przed potencjalnymi atakami.
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Original NVD description (English source)
NovumOS is a custom 32-bit operating system written in Zig and x86 Assembly. In versions prior to 0.24, Syscall 15 (MemoryMapRange) allows Ring 3 user-mode processes to map arbitrary virtual address ranges into their address space without validating against forbidden regions, including critical kernel structures such as the IDT, GDT, TSS, and page tables. A local attacker can exploit this to modify kernel interrupt handlers, resulting in privilege escalation from user mode to kernel context. This issue has been fixed in version 0.24.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS