VULNERABILITY INTELLIGENCE

CVE-1999-1476

CVSS score2.1 LOW
EPSS probability0.29%
CISA KEVNot currently listed
Published1999-12-31
Last modified2026-06-16
CVSS vectorAV:L/AC:L/Au:N/C:N/I:N/A:P

Description

A bug in Intel Pentium processor (MMX and Overdrive) allows local users to cause a denial of service (hang) in Intel-based operating systems such as Windows NT and Windows 95, via an invalid instruction, aka the "Invalid Operand with Locked CMPXCHG8B Instruction" problem.

Primary references