Is CVE-2015-8768 in the CISA KEV catalog?

No. CVE-2015-8768 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2015-8768?

CVE-2015-8768 has a CVSS v3 base score of 9.8 (CRITICAL).

What is the EPSS score for CVE-2015-8768?

CVE-2015-8768 has an EPSS score of 2.75% (84th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2015-8768?

Upgrade click on ubuntu 14.04 to 0.4.21.1ubuntu0.2 or later. Fixes are available for 2 affected products.

CVE & CISA-KEV Catalog

CVE-2015-8768

CRITICALEPSS 84th pctl

9.8

CVSS v3

NVD

Description

click/install.py in click does not require files in package filesystem tarballs to start with ./ (dot slash), which allows remote attackers to install an alternate security policy and gain privileges via a crafted package, as demonstrated by the test.mmrow app for Ubuntu phone.

CWE-264Permissions, Privileges, and Access Controls

How to fix

Remediation Available

clickUbuntu

Fixed in:0.4.21.1ubuntu0.2USN-2771-1

python3-clickUbuntu

Fixed in:0.4.21.1ubuntu0.2USN-2771-1

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 VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

2.75%probability of exploitation in 30 days

84thpercentile

Elevated risk: more likely to be exploited than 84% of all known CVEs.

References

Patch3

Third-Party Advisory2

Other references3

Related Vulnerabilities

Other CWE-264 (Permissions, Privileges, and Access Controls) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2012-1456	Medium	4.3	100%	-	-
CVE-2012-1459	Medium	4.3	100%	-	Fix
CVE-2012-1446	Medium	4.3	100%	-	-
CVE-2012-1443	Medium	4.3	100%	-	-
CVE-2012-1442	Medium	4.3	99%	-	-
CVE-2012-1457	Medium	4.3	98%	-	Fix

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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 2026-05-13.