Is CVE-2014-1509 in the CISA KEV catalog?

No. CVE-2014-1509 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2014-1509?

CVE-2014-1509 has a CVSS v3 base score of 8.8 (HIGH).

What is the EPSS score for CVE-2014-1509?

CVE-2014-1509 has an EPSS score of 5.03% (91th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2014-1509?

Upgrade DeveloperEdition to 28.0 or later. Fixes are available for 3 affected products.

CVE & CISA-KEV Catalog

CVE-2014-1509

HIGHEPSS 91th pctl

8.8

CVSS v3

NVD

Description

Buffer overflow in the _cairo_truetype_index_to_ucs4 function in cairo, as used in Mozilla Firefox before 28.0, Firefox ESR 24.x before 24.4, Thunderbird before 24.4, and SeaMonkey before 2.25, allows remote attackers to execute arbitrary code via a crafted extension that renders fonts in a PDF document.

CWE-120Classic Buffer Overflow

How to fix

Remediation Available

DeveloperEditionWindows application

Affected:28.0Fixed in:28.0Mozilla

Affected:24.0 24.4Fixed in:24.4Mozilla

Mozilla Firefox (en-US)Windows application

Affected:24.0 24.4Fixed in:24.4Mozilla

Affected:28.0Fixed in:28.0Mozilla

Mozilla Thunderbird (en-US)Windows application

Affected:24.4Fixed in:24.4Mozilla

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

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Exploit Intelligence

5.03%probability of exploitation in 30 days

91stpercentile

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

References

Exploit1

bugzilla.mozilla.org

Vendor Advisory1

mozilla.org

Third-Party Advisory10

Related Vulnerabilities

Other CWE-120 (Classic Buffer Overflow) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2014-0195	Medium	6.8	100%	-	Fix
CVE-2017-7269	Critical	9.8	100%	KEV	-
CVE-2019-11043	High	8.7	99%	KEV + Ransom	Fix
CVE-2011-4862	High	10.0	95%	-	Fix
CVE-2007-5659	High	7.8	94%	KEV	Fix
CVE-2022-3786	High	7.5	91%	-	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.