NICM.SYS driver 3.0.0.4, as used in Novell NetWare Client 4.91 SP4, allows local users to execute arbitrary code by opening the \\.\nicm device and providing crafted kernel addresses via IOCTLs with the METHOD_NEITHER buffering mode.
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NICM.SYS driver 3.0.0.4, as used in Novell NetWare Client 4.91 SP4, allows local users to execute arbitrary code by opening the \\.\nicm device and providing crafted kernel addresses via IOCTLs with the METHOD_NEITHER buffering mode.
January 9, 2008
April 23, 2026
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
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Working exploit code is in the public domain (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.
Novell Client 4.91 SP4 - Local Privilege Escalation
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CWE-20