Is CVE-2015-4501 in the CISA KEV catalog?

No. CVE-2015-4501 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2015-4501?

CVE-2015-4501 has a CVSS v2 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2015-4501?

CVE-2015-4501 has an EPSS score of 4.63% (91th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2015-4501?

Upgrade firefox on ubuntu 14.04 to 41.0+build3-0ubuntu0.14.04.1 or later.

CVE & CISA-KEV Catalog

CVE-2015-4501

HIGHEPSS 91th pctl

7.5

CVSS v2

NVD

Description

Multiple unspecified vulnerabilities in the browser engine in Mozilla Firefox before 41.0 allow remote attackers to cause a denial of service (memory corruption and application crash) or possibly execute arbitrary code via unknown vectors.

CWE-119Buffer Overflow

How to fix

Remediation Available

firefoxUbuntu

Fixed in:41.0+build3-0ubuntu0.14.04.1USN-2743-1

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

4.63%probability of exploitation in 30 days

91stpercentile

High risk: more likely to be exploited than 91% of all known CVEs.

References

Vendor Advisory1

mozilla.org

Other references14

Related Vulnerabilities

Other CWE-119 (Buffer Overflow) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-4966	Critical	9.4	100%	KEV + Ransom	Fix
CVE-2017-11882	High	7.8	100%	KEV + Ransom	-
CVE-2020-0796	Critical	10.0	100%	KEV + Ransom	-
CVE-2008-4250	Critical	9.8	99%	KEV	-
CVE-2017-15944	Critical	9.8	98%	KEV	Fix
CVE-2015-0014	High	10.0	97%	-	-

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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.