Is CVE-2020-15664 in the CISA KEV catalog?

No. CVE-2020-15664 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2020-15664?

CVE-2020-15664 has a CVSS v3 base score of 6.5 (MEDIUM).

What is the EPSS score for CVE-2020-15664?

CVE-2020-15664 has an EPSS score of 1.38% (69th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2020-15664?

Upgrade firefox on debian unstable to 80.0-1 or later. Fixes are available for 6 affected products.

CVE & CISA-KEV Catalog

CVE-2020-15664

MEDIUM

6.5

CVSS v3

NVD

Description

By holding a reference to the eval() function from an about:blank window, a malicious webpage could have gained access to the InstallTrigger object which would allow them to prompt the user to install an extension. Combined with user confusion, this could result in an unintended or malicious extension being installed. This vulnerability affects Firefox < 80, Thunderbird < 78.2, Thunderbird < 68.12, Firefox ESR < 68.12, Firefox ESR < 78.2, and Firefox for Android < 80.

CWE-863Incorrect Authorization

How to fix

Remediation Available

firefoxDebian

Fixed in:80.0-1CVE-2020-15664

firefoxUbuntu

Fixed in:80.0+build2-0ubuntu0.16.04.1USN-4474-1

Fixed in:80.0+build2-0ubuntu0.18.04.1USN-4474-1

Fixed in:80.0+build2-0ubuntu0.20.04.1USN-4474-1

DeveloperEditionWindows application

Affected:80.0Fixed in:80.0Mozilla

Affected:78.0 78.2Fixed in:78.2Mozilla

Mozilla Firefox (en-US)Windows application

Affected:78.0 78.2Fixed in:78.2Mozilla

Affected:80.0Fixed in:80.0Mozilla

Mozilla Firefox ESR (en-US)Windows application

Affected:68.12Fixed in:68.12Mozilla

Mozilla Thunderbird (en-US)Windows application

Affected:68.12Fixed in:68.12Mozilla

Affected:78.0 78.2Fixed in:78.2Mozilla

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 InteractionRequired

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityHigh

AvailabilityNone

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

Exploit Intelligence

1.38%probability of exploitation in 30 days

69thpercentile

Moderate risk: more likely to be exploited than 69% of all known CVEs.

References

Vendor Advisory7

Related Vulnerabilities

Other CWE-863 (Incorrect Authorization) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-22518	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2023-38035	Critical	9.8	100%	KEV + Ransom	-
CVE-2022-46169	Critical	9.8	100%	KEV	Fix
CVE-2025-29927	Critical	9.1	100%	-	Fix
CVE-2024-38856	Critical	9.8	99%	KEV	Fix
CVE-2020-36289	Medium	5.3	99%	-	Fix

Embed a live status badge for CVE-2020-15664

Markdown

[![CVE-2020-15664](https://tridentstack.com/cve/badge/CVE-2020-15664.svg)](https://tridentstack.com/cve/CVE-2020-15664)

HTML

<a href="https://tridentstack.com/cve/CVE-2020-15664"><img src="https://tridentstack.com/cve/badge/CVE-2020-15664.svg" alt="CVE-2020-15664"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

Start free

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.