Is CVE-2016-1965 in the CISA KEV catalog?

No. CVE-2016-1965 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2016-1965?

CVE-2016-1965 has a CVSS v3 base score of 4.3 (MEDIUM).

What is the EPSS score for CVE-2016-1965?

CVE-2016-1965 has an EPSS score of 2.22% (80th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2016-1965?

Upgrade firefox on debian unstable to 45.0-1 or later. Fixes are available for 2 affected products.

CVE & CISA-KEV Catalog

CVE-2016-1965

MEDIUMEPSS 80th pctl

4.3

CVSS v3

NVD

Description

Mozilla Firefox before 45.0 and Firefox ESR 38.x before 38.7 mishandle a navigation sequence that returns to the original page, which allows remote attackers to spoof the address bar via vectors involving the history.back method and the location.protocol property.

CWE-254

How to fix

Remediation Available

firefoxDebian

Fixed in:45.0-1CVE-2016-1965

firefoxUbuntu

Fixed in:45.0+build2-0ubuntu0.14.04.1USN-2917-1

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

IntegrityLow

AvailabilityNone

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

Exploit Intelligence

2.22%probability of exploitation in 30 days

80thpercentile

Elevated risk: more likely to be exploited than 80% of all known CVEs.

References

Vendor Advisory1

mozilla.org

Third-Party Advisory2

Issue Tracking1

bugzilla.mozilla.org

Other references13

Related Vulnerabilities

Other CWE-254 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2016-0161	Medium	6.5	69%	-	-
CVE-2016-2296	Critical	9.4	64%	-	-
CVE-2015-1793	Medium	6.5	62%	-	Fix
CVE-2016-2118	High	7.5	37%	-	Fix
CVE-2016-3238	High	8.1	35%	-	-
CVE-2016-3198	Medium	6.5	32%	-	-

Embed a live status badge for CVE-2016-1965

Markdown

[![CVE-2016-1965](https://tridentstack.com/cve/badge/CVE-2016-1965.svg)](https://tridentstack.com/cve/CVE-2016-1965)

HTML

<a href="https://tridentstack.com/cve/CVE-2016-1965"><img src="https://tridentstack.com/cve/badge/CVE-2016-1965.svg" alt="CVE-2016-1965"></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 2026-05-06.