CVE & CISA-KEV Catalog

CVE-2020-8908

LOW
3.3
CVSS v3
NVD

Description

A temp directory creation vulnerability exists in all versions of Guava, allowing an attacker with access to the machine to potentially access data in a temporary directory created by the Guava API com.google.common.io.Files.createTempDir(). By default, on unix-like systems, the created directory is world-readable (readable by an attacker with access to the system). The method in question has been marked @Deprecated in versions 30.0 and later and should not be used. For Android developers, we recommend choosing a temporary directory API provided by Android, such as context.getCacheDir(). For other Java developers, we recommend migrating to the Java 7 API java.nio.file.Files.createTempDirectory() which explicitly configures permissions of 700, or configuring the Java runtime's java.io.tmpdir system property to point to a location whose permissions are appropriately configured.

How to fix

Remediation Available
guava-librariesDebian
Fixed in:32.0.1-1CVE-2020-8908
Fixed in:32.0.1-1CVE-2020-8908

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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

ConfidentialityLow
IntegrityNone
AvailabilityNone

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

Exploit Intelligence

0.96%probability of exploitation in 30 days
58thpercentile

Moderate risk: more likely to be exploited than 58% of all known CVEs.

References

Related Vulnerabilities

Other CWE-378 vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2020-27216High7.04.4%-Fix
CVE-2021-21290Medium6.21.8%-Fix
CVE-2016-9485High7.81.2%--
CVE-2022-24823Medium5.51.0%-Fix
CVE-2021-28168Medium6.20.9%-Fix
CVE-2023-0482Medium5.50.8%-Fix

Common questions

How do I fix CVE-2020-8908?

Upgrade guava-libraries on debian 13 to 32.0.1-1 or later.

Is CVE-2020-8908 being actively exploited?

Not that we know of. CVE-2020-8908 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.96% is the estimated probability that it will be exploited in the next 30 days. That is higher than 58% of all scored CVEs.

How severe is CVE-2020-8908?

CVE-2020-8908 has a CVSS v3 base score of 3.3, rated low. 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-2020-8908 affect?

Published advisories record a fix for guava-libraries (Debian). 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 2026-02-23.