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CVE-2018-3639

Published: May 22, 2018Updated: May 29, 2026 Sources: CVE List NVD BDUCWE-203
NVD MITRE
5.5CVSSMEDIUM
EPSS Score
60.6%
Top 1.0%
CISA KEV
Not in KEV
Exploits
2 Known
Remediation
Patch Available

Description

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.

CVSS Vector Breakdown

AV:LAC:LPR:LUI:NS:UC:HI:NA:N
Exploitability
AV:LAttack Vector
Local
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:NIntegrity
None
A:NAvailability
None
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Weaknesses

CWE-203

Affected Products

MultipleIntel CorporationHardware Firmware
atom cintel
Embedded
Hardware Firmware / cpu-gpu
atom eintel
Embedded
Hardware Firmware / cpu-gpu
atom x5-e3930intel
Embedded
Hardware Firmware / cpu-gpu
atom x5-e3940intel
Embedded
Hardware Firmware / cpu-gpu
intel corporationcommercialUSHardware Firmware
intelcommercialUSHardware Firmwareaka intel corp.
and 357 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

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Exploitability

2 exploit sources identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details
Official Patch Available

MITRE ATT&CK

1 technique
Discovery
View detailed technique mapping

References

https://access.redhat.com/errata/RHSA-2018:1689
access.redhat.com
https://access.redhat.com/errata/RHSA-2018:2162
access.redhat.com
https://access.redhat.com/errata/RHSA-2018:1641
access.redhat.com
and 171 more references View all →

Timeline

Published
May 22, 2018
Last Updated
May 29, 2026

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