Is CVE-2016-5287 in the CISA KEV catalog?

No. CVE-2016-5287 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2016-5287?

CVE-2016-5287 has a CVSS v3 base score of 9.8 (CRITICAL).

What is the EPSS score for CVE-2016-5287?

CVE-2016-5287 has an EPSS score of 2.43% (82th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2016-5287?

Upgrade firefox on debian unstable to 50.0-1 or later. Fixes are available for 4 affected products.

CVE & CISA-KEV Catalog

CVE-2016-5287

CRITICALEPSS 82th pctl

9.8

CVSS v3

NVD

Description

A potentially exploitable use-after-free crash during actor destruction with service workers. This issue does not affect releases earlier than Firefox 49. This vulnerability affects Firefox < 49.0.2.

CWE-416Use After Free

How to fix

Remediation Available

firefoxDebian

Fixed in:50.0-1CVE-2016-5287

firefoxUbuntu

Fixed in:49.0.2+build2-0ubuntu0.14.04.1USN-3111-1

Fixed in:49.0.2+build2-0ubuntu0.16.04.2USN-3111-1

DeveloperEditionWindows application

Affected:49.0.2Fixed in:49.0.2Mozilla

Mozilla Firefox (en-US)Windows application

Affected:49.0.2Fixed in:49.0.2Mozilla

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 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

2.43%probability of exploitation in 30 days

82ndpercentile

Elevated risk: more likely to be exploited than 82% of all known CVEs.

References

Vendor Advisory2

Third-Party Advisory2

Related Vulnerabilities

Other CWE-416 (Use After Free) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2019-0708	Critical	9.8	100%	KEV + Ransom	-
CVE-2021-31166	Critical	9.8	100%	KEV	Fix
CVE-2015-5119	Critical	9.8	99%	KEV	-
CVE-2010-3962	High	8.1	97%	KEV	-
CVE-2015-0313	Critical	9.8	96%	KEV	Fix
CVE-2017-9798	High	7.5	95%	-	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.