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Unrated severityNVD Advisory· Published Dec 31, 1999· Updated Jun 16, 2026

CVE-1999-1476

CVE-1999-1476

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.

Affected products

3
  • Intel/Pentium2 versions
    cpe:2.3:h:intel:pentium:*:*:mmx:*:*:*:*:*+ 1 more
    • cpe:2.3:h:intel:pentium:*:*:mmx:*:*:*:*:*
    • (no CPE)range: MMX and Overdrive
  • Intel/Pentuim
    cpe:2.3:h:intel:pentuim:*:*:overdrive:*:*:*:*:*

Patches

Vulnerability mechanics

References

2

News mentions

0

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