Is CVE-2015-2711 in the CISA KEV catalog?

No. CVE-2015-2711 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2015-2711?

CVE-2015-2711 has a CVSS v2 base score of 4.3 (MEDIUM).

What is the EPSS score for CVE-2015-2711?

CVE-2015-2711 has an EPSS score of 1.90% (77th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2015-2711?

Upgrade firefox on ubuntu 14.04 to 38.0+build3-0ubuntu0.14.04.1 or later.

CVE & CISA-KEV Catalog

CVE-2015-2711

MEDIUMEPSS 77th pctl

4.3

CVSS v2

NVD

Description

Mozilla Firefox before 38.0 does not recognize a referrer policy delivered by a referrer META element in cases of context-menu navigation and middle-click navigation, which allows remote attackers to obtain sensitive information by reading web-server Referer logs that contain private data in a URL, as demonstrated by a private path component.

CWE-200Information Exposure

How to fix

Remediation Available

firefoxUbuntu

Fixed in:38.0+build3-0ubuntu0.14.04.1USN-2602-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

1.90%probability of exploitation in 30 days

77thpercentile

Elevated risk: more likely to be exploited than 77% of all known CVEs.

References

Vendor Advisory1

mozilla.org

Other references6

Related Vulnerabilities

Other CWE-200 (Information Exposure) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2024-24919	High	8.6	100%	KEV + Ransom	-
CVE-2020-14181	Medium	5.3	100%	-	Fix
CVE-2021-34429	Medium	5.3	99%	-	Fix
CVE-2018-11409	Medium	5.3	98%	-	-
CVE-2021-41277	Critical	10.0	97%	KEV	-
CVE-2016-2183	High	7.5	96%	-	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 2026-05-06.