Is CVE-2018-3615 in the CISA KEV catalog?

No. CVE-2018-3615 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2018-3615?

CVE-2018-3615 has a CVSS v3 base score of 7.3 (HIGH).

What is the EPSS score for CVE-2018-3615?

CVE-2018-3615 has an EPSS score of 6.30% (93th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2018-3615?

Upgrade intel-microcode on debian 11 to 3.20180703.1 or later.

CVE & CISA-KEV Catalog

CVE-2018-3615

HIGHEPSS 93th pctl

7.3

CVSS v3

NVD

Description

Systems with microprocessors utilizing speculative execution and Intel software guard extensions (Intel SGX) may allow unauthorized disclosure of information residing in the L1 data cache from an enclave to an attacker with local user access via a side-channel analysis.

CWE-203

How to fix

Remediation Available

intel-microcodeDebian

Fixed in:3.20180703.1CVE-2018-3615

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

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 ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeChanged

Impact

ConfidentialityHigh

IntegrityLow

AvailabilityNone

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N

Exploit Intelligence

6.30%probability of exploitation in 30 days

93rdpercentile

High risk: more likely to be exploited than 93% of all known CVEs.

References

Vendor Advisory2

Third-Party Advisory12

Other references3

Related Vulnerabilities

Other CWE-203 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2017-5753	Medium	5.6	94%	-	Fix
CVE-2003-0190	Medium	5.0	77%	-	Fix
CVE-2017-5715	Medium	5.6	74%	-	Fix
CVE-2018-3639	Medium	5.5	61%	-	Fix
CVE-2023-28770	High	7.5	58%	-	Fix
CVE-2004-1602	Medium	5.0	31%	-	-

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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 2026-05-29.