Is CVE-2018-3640 in the CISA KEV catalog?

No. CVE-2018-3640 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2018-3640?

CVE-2018-3640 has a CVSS v3 base score of 5.6 (MEDIUM).

What is the EPSS score for CVE-2018-3640?

CVE-2018-3640 has an EPSS score of 7.56% (94th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2018-3640?

Upgrade intel-microcode on debian 11 to 3.20180703.1 or later. Fixes are available for 2 affected products.

CVE & CISA-KEV Catalog

CVE-2018-3640

MEDIUMEPSS 94th pctl

5.6

CVSS v3

NVD

Description

Systems with microprocessors utilizing speculative execution and that perform speculative reads of system registers may allow unauthorized disclosure of system parameters to an attacker with local user access via a side-channel analysis, aka Rogue System Register Read (RSRE), Variant 3a.

CWE-203

How to fix

Remediation Available

intel-microcodeDebian

Fixed in:3.20180703.1CVE-2018-3640

intel-microcodeUbuntu

Fixed in:3.20180807a.0ubuntu0.14.04.1USN-3756-1

Fixed in:3.20180807a.0ubuntu0.16.04.1USN-3756-1

Fixed in:3.20180807a.0ubuntu0.18.04.1USN-3756-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityHigh

Privileges RequiredLow

User InteractionNone

ScopeChanged

Impact

ConfidentialityHigh

IntegrityNone

AvailabilityNone

CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N

Exploit Intelligence

7.56%probability of exploitation in 30 days

94thpercentile

High risk: more likely to be exploited than 94% of all known CVEs.

References

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.