Is CVE-2020-15670 in the CISA KEV catalog?

No. CVE-2020-15670 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2020-15670?

CVE-2020-15670 has a CVSS v3 base score of 8.8 (HIGH).

What is the EPSS score for CVE-2020-15670?

CVE-2020-15670 has an EPSS score of 1.08% (61th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2020-15670?

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

CVE & CISA-KEV Catalog

CVE-2020-15670

HIGH

8.8

CVSS v3

NVD

Description

Mozilla developers reported memory safety bugs present in Firefox for Android 79. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 80, Firefox ESR < 78.2, Thunderbird < 78.2, and Firefox for Android < 80.

CWE-362Race Condition CWE-416Use After Free CWE-617

How to fix

Remediation Available

firefoxDebian

Fixed in:80.0-1CVE-2020-15670

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

Mozilla Firefox (en-US)Windows application

Affected:80.0Fixed in:80.0Mozilla

Mozilla Firefox ESR (en-US)Windows application

Affected:78.2Fixed in:78.2Mozilla

Mozilla Thunderbird (en-US)Windows application

Affected: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

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

1.08%probability of exploitation in 30 days

61stpercentile

Moderate risk: more likely to be exploited than 61% of all known CVEs.

References

Vendor Advisory5

Related Vulnerabilities

Other CWE-362 (Race Condition) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2024-6387	High	8.1	100%	-	Fix
CVE-2023-36884	High	7.5	99%	KEV + Ransom	Fix
CVE-2018-15473	Medium	5.3	99%	-	Fix
CVE-2024-27983	High	8.2	87%	-	Fix
CVE-2014-0226	Medium	6.8	86%	-	Fix
CVE-2016-5195	High	7.0	84%	KEV	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 2024-11-21.