Is CVE-2020-12424 in the CISA KEV catalog?

No. CVE-2020-12424 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2020-12424?

CVE-2020-12424 has a CVSS v3 base score of 6.5 (MEDIUM).

What is the EPSS score for CVE-2020-12424?

CVE-2020-12424 has an EPSS score of 1.39% (69th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2020-12424?

Upgrade firefox on debian unstable to 78.0-1 or later. Fixes are available for 4 affected products.

CVE & CISA-KEV Catalog

CVE-2020-12424

MEDIUM

6.5

CVSS v3

NVD

Description

When constructing a permission prompt for WebRTC, a URI was supplied from the content process. This URI was untrusted, and could have been the URI of an origin that was previously granted permission; bypassing the prompt. This vulnerability affects Firefox < 78.

CWE-276

How to fix

Remediation Available

firefoxDebian

Fixed in:78.0-1CVE-2020-12424

firefoxUbuntu

Fixed in:78.0.1+build1-0ubuntu0.16.04.1USN-4408-1

Fixed in:78.0.1+build1-0ubuntu0.18.04.1USN-4408-1

Fixed in:78.0.1+build1-0ubuntu0.20.04.1USN-4408-1

DeveloperEditionWindows application

Affected:78.0Fixed in:78.0Mozilla

Mozilla Firefox (en-US)Windows application

Affected:78.0Fixed in:78.0Mozilla

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

1.39%probability of exploitation in 30 days

69thpercentile

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

References

Vendor Advisory1

mozilla.org

Third-Party Advisory3

Issue Tracking1

bugzilla.mozilla.org

Related Vulnerabilities

Other CWE-276 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2013-0632	Critical	9.8	94%	KEV	-
CVE-2017-11610	High	8.8	88%	-	Fix
CVE-2023-29919	Critical	9.1	60%	-	-
CVE-2019-17124	Critical	9.8	23%	-	-
CVE-2020-12608	High	7.8	22%	-	Fix
CVE-2021-3437	Critical	9.8	16%	-	Fix

Embed a live status badge for CVE-2020-12424

Markdown

[![CVE-2020-12424](https://tridentstack.com/cve/badge/CVE-2020-12424.svg)](https://tridentstack.com/cve/CVE-2020-12424)

HTML

<a href="https://tridentstack.com/cve/CVE-2020-12424"><img src="https://tridentstack.com/cve/badge/CVE-2020-12424.svg" alt="CVE-2020-12424"></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.