Is CVE-2020-15657 in the CISA KEV catalog?

No. CVE-2020-15657 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2020-15657?

CVE-2020-15657 has a CVSS v3 base score of 7.8 (HIGH).

What is the EPSS score for CVE-2020-15657?

CVE-2020-15657 has an EPSS score of 0.35% (27th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2020-15657?

Upgrade DeveloperEdition to 79.0 or later. Fixes are available for 4 affected products.

CVE & CISA-KEV Catalog

CVE-2020-15657

HIGH

7.8

CVSS v3

NVD

Description

Firefox could be made to load attacker-supplied DLL files from the installation directory. This required an attacker that is already capable of placing files in the installation directory. *Note: This issue only affected Windows operating systems. Other operating systems are unaffected.*. This vulnerability affects Firefox ESR < 78.1, Firefox < 79, and Thunderbird < 78.1.

CWE-427

How to fix

Remediation Available

DeveloperEditionWindows application

Affected:79.0Fixed in:79.0Mozilla

Mozilla Firefox (en-US)Windows application

Affected:79.0Fixed in:79.0Mozilla

Mozilla Firefox ESR (en-US)Windows application

Affected:78.1Fixed in:78.1Mozilla

Mozilla Thunderbird (en-US)Windows application

Affected:78.1Fixed in:78.1Mozilla

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 RequiredNone

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

0.35%probability of exploitation in 30 days

27thpercentile

Low risk: more likely to be exploited than 27% of all known CVEs.

References

Vendor Advisory4

Third-Party Advisory1

lists.opensuse.org

Related Vulnerabilities

Other CWE-427 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2020-27955	Critical	9.8	83%	-	-
CVE-2017-6517	Critical	9.8	46%	-	-
CVE-2020-3153	Medium	6.5	28%	KEV + Ransom	Fix
CVE-2024-48990	High	7.8	20%	-	Fix
CVE-2019-9491	High	7.8	13%	-	-
CVE-2020-3433	High	7.8	10%	KEV + Ransom	Fix

Embed a live status badge for CVE-2020-15657

Markdown

[![CVE-2020-15657](https://tridentstack.com/cve/badge/CVE-2020-15657.svg)](https://tridentstack.com/cve/CVE-2020-15657)

HTML

<a href="https://tridentstack.com/cve/CVE-2020-15657"><img src="https://tridentstack.com/cve/badge/CVE-2020-15657.svg" alt="CVE-2020-15657"></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.