CVE & CISA-KEV Catalog

CVE-2018-3639

MEDIUMEPSS 99th pctl

5.5

CVSS v3

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.

How to fix

Remediation Available

java-1.7.0-openjdkAmazon

Fixed in:1:1.7.0.181-2.6.14.8.amzn2

java-1.7.0-openjdk-accessibilityAmazon

Fixed in:1:1.7.0.181-2.6.14.8.amzn2

java-1.7.0-openjdk-debuginfoAmazon

Fixed in:1:1.7.0.181-2.6.14.8.amzn2

java-1.7.0-openjdk-demoAmazon

Fixed in:1:1.7.0.181-2.6.14.8.amzn2

java-1.7.0-openjdk-develAmazon

Fixed in:1:1.7.0.181-2.6.14.8.amzn2

java-1.7.0-openjdk-headlessAmazon

Fixed in:1:1.7.0.181-2.6.14.8.amzn2

java-1.7.0-openjdk-javadocAmazon

Fixed in:1:1.7.0.181-2.6.14.8.amzn2

java-1.7.0-openjdk-srcAmazon

Fixed in:1:1.7.0.181-2.6.14.8.amzn2

java-1.8.0-openjdkAmazon

Fixed in:1:1.8.0.171-8.b10.amzn2

java-1.8.0-openjdk-accessibilityAmazon

Fixed in:1:1.8.0.171-8.b10.amzn2

java-1.8.0-openjdk-accessibility-debugAmazon

Fixed in:1:1.8.0.171-8.b10.amzn2

java-1.8.0-openjdk-debugAmazon

Fixed in:1:1.8.0.171-8.b10.amzn2

java-1.8.0-openjdk-debuginfoAmazon

Fixed in:1:1.8.0.171-8.b10.amzn2

java-1.8.0-openjdk-demoAmazon

Fixed in:1:1.8.0.171-8.b10.amzn2

java-1.8.0-openjdk-demo-debugAmazon

Fixed in:1:1.8.0.171-8.b10.amzn2

java-1.8.0-openjdk-develAmazon

Fixed in:1:1.8.0.171-8.b10.amzn2

java-1.8.0-openjdk-devel-debugAmazon

Fixed in:1:1.8.0.171-8.b10.amzn2

java-1.8.0-openjdk-headlessAmazon

Fixed in:1:1.8.0.171-8.b10.amzn2

java-1.8.0-openjdk-headless-debugAmazon

Fixed in:1:1.8.0.171-8.b10.amzn2

java-1.8.0-openjdk-javadocAmazon

Fixed in:1:1.8.0.171-8.b10.amzn2

java-1.8.0-openjdk-javadoc-debugAmazon

Fixed in:1:1.8.0.171-8.b10.amzn2

java-1.8.0-openjdk-javadoc-zipAmazon

Fixed in:1:1.8.0.171-8.b10.amzn2

java-1.8.0-openjdk-javadoc-zip-debugAmazon

Fixed in:1:1.8.0.171-8.b10.amzn2

java-1.8.0-openjdk-srcAmazon

Fixed in:1:1.8.0.171-8.b10.amzn2

java-1.8.0-openjdk-src-debugAmazon

Fixed in:1:1.8.0.171-8.b10.amzn2

kernelAmazon

Fixed in:0:4.14.47-63.37.amzn2

kernel-debuginfoAmazon

Fixed in:0:4.14.47-63.37.amzn2

kernel-debuginfo-common-x86_64Amazon

Fixed in:0:4.14.47-63.37.amzn2

kernel-develAmazon

Fixed in:0:4.14.47-63.37.amzn2

kernel-headersAmazon

Fixed in:0:4.14.47-63.37.amzn2

This vulnerability affects an unusually large number of packages. The highest-confidence fixes are shown above; the full list is longer. Check the referenced advisories for complete coverage.

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

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityNone

AvailabilityNone

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

Exploit Intelligence

60.63%probability of exploitation in 30 days

99thpercentile

Very high risk: more likely to be exploited than 99% of all known CVEs.

References

Third-Party Advisory47

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-2023-28770	High	7.5	58%	-	Fix
CVE-2004-1602	Medium	5.0	31%	-	-
CVE-2017-13099	High	7.5	25%	-	Fix

Common questions

How do I fix CVE-2018-3639?

Published advisories record a fix for 119 affected products. The "How to fix" section on this page lists the fixed version and source advisory for each one, so apply the entry matching what you actually run.

Is CVE-2018-3639 being actively exploited?

Not that we know of. CVE-2018-3639 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 60.6% is the estimated probability that it will be exploited in the next 30 days. That is higher than 99% of all scored CVEs.

How severe is CVE-2018-3639?

CVE-2018-3639 has a CVSS v3 base score of 5.5, rated medium. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

What does CVE-2018-3639 affect?

Published advisories record a fix for java-1.7.0-openjdk (Amazon), java-1.7.0-openjdk-accessibility (Amazon), java-1.7.0-openjdk-debuginfo (Amazon), java-1.7.0-openjdk-demo (Amazon), and 115 more. Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

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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 2026-06-17.