Systems with microprocessors utilizing speculative execution and speculative execution of memory reads before the addresses of all prior mem

Summary

Systems with microprocessors utilizing speculative execution and speculative execution of memory reads before the addresses of all prior memory writes are known may allow unauthorized disclosure of information to an attacker with local user access via a side-channel analysis, aka Speculative Store Bypass (SSB), Variant 4.

Timeline

1. May 22, 2018, 12:00 PM UTCCVE published
2. May 22, 2018Public exploit on Exploit-DB

   EDB-44695

3. May 29, 2026, 8:13 PM UTCCISA SSVC assessment

   Exploitation: none · Automatable: no · Technical impact: partial

4. May 29, 2026, 8:14 PM UTCRecord last updated
5. Oct 28, 2026EPSS reached 10%

   FIRST estimates at least a 10% chance of exploitation in the next 30 days

Affected versions

• Intel Corporation Multiple

  Multiple

References 30