Is CVE-2015-2730 in the CISA KEV catalog?

No. CVE-2015-2730 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2015-2730?

CVE-2015-2730 has a CVSS v2 base score of 4.3 (MEDIUM).

What is the EPSS score for CVE-2015-2730?

CVE-2015-2730 has an EPSS score of 3.59% (88th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2015-2730?

Upgrade nss on debian 11 to 2:3.19.1-1 or later. Fixes are available for 4 affected products.

CVE & CISA-KEV Catalog

CVE-2015-2730

MEDIUMEPSS 88th pctl

4.3

CVSS v2

NVD

Description

Mozilla Network Security Services (NSS) before 3.19.1, as used in Mozilla Firefox before 39.0, Firefox ESR 31.x before 31.8 and 38.x before 38.1, and other products, does not properly perform Elliptical Curve Cryptography (ECC) multiplications, which makes it easier for remote attackers to spoof ECDSA signatures via unspecified vectors.

CWE-310Cryptographic Issues

How to fix

Remediation Available

nssDebian

Fixed in:2:3.19.1-1CVE-2015-2730

firefoxUbuntu

Fixed in:39.0+build5-0ubuntu0.14.04.1USN-2656-1

libnss3Ubuntu

Fixed in:2:3.19.2-0ubuntu0.14.04.1USN-2672-1

nssUbuntu

Fixed in:2:3.19.2-0ubuntu0.14.04.1USN-2672-1

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

3.59%probability of exploitation in 30 days

88thpercentile

Elevated risk: more likely to be exploited than 88% of all known CVEs.

References

Vendor Advisory2

Third-Party Advisory5

Issue Tracking1

bugzilla.mozilla.org

Other references13

Related Vulnerabilities

Other CWE-310 (Cryptographic Issues) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2014-3566	Low	3.4	100%	-	Fix
CVE-2015-4000	Low	3.7	100%	-	Fix
CVE-2015-0204	Medium	4.3	99%	-	Fix
CVE-2016-2107	Medium	5.9	89%	-	Fix
CVE-2016-0800	Medium	5.9	82%	-	Fix
CVE-2014-8684	Critical	9.8	72%	-	-

Embed a live status badge for CVE-2015-2730

Markdown

[![CVE-2015-2730](https://tridentstack.com/cve/badge/CVE-2015-2730.svg)](https://tridentstack.com/cve/CVE-2015-2730)

HTML

<a href="https://tridentstack.com/cve/CVE-2015-2730"><img src="https://tridentstack.com/cve/badge/CVE-2015-2730.svg" alt="CVE-2015-2730"></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.