Is CVE-2014-1583 in the CISA KEV catalog?

No. CVE-2014-1583 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2014-1583?

CVE-2014-1583 has a CVSS v2 base score of 5.0 (MEDIUM).

What is the EPSS score for CVE-2014-1583?

CVE-2014-1583 has an EPSS score of 2.81% (85th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2014-1583?

Upgrade firefox on ubuntu 14.04 to 33.0+build2-0ubuntu0.14.04.1 or later.

CVE & CISA-KEV Catalog

CVE-2014-1583

MEDIUMEPSS 85th pctl

5.0

CVSS v2

NVD

Description

The Alarm API in Mozilla Firefox before 33.0 and Firefox ESR 31.x before 31.2 does not properly restrict toJSON calls, which allows remote attackers to bypass the Same Origin Policy via crafted API calls that access sensitive information within the JSON data of an alarm.

How to fix

Remediation Available

firefoxUbuntu

Fixed in:33.0+build2-0ubuntu0.14.04.1USN-2372-1

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

2.81%probability of exploitation in 30 days

85thpercentile

Elevated risk: more likely to be exploited than 85% of all known CVEs.

References

Vendor Advisory1

mozilla.org

Other references17

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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.