No exploitation reportedFix available

CVE-2014-1509

Q: Is CVE-2014-1509 actively exploited?

Active exploitation of CVE-2014-1509 has not been confirmed. Its EPSS score was 5.0% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

Q: What is the CVSS score for CVE-2014-1509?

CVE-2014-1509 has a CVSS v3 base score of 8.8 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

No exploitation reported by the sources we read.

Published2014-03-19
WeaknessCWE-120

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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.

Timeline

dates in UTC

2014-03-1910:55CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 18:48 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2014-1509?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2014-1509?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Canonical ubuntu linux

Branch	Affected	Fixed in	Source
12.4	= 12.04	no fix published	NVD
12.10	= 12.10	no fix published	NVD
13.10	= 13.10	no fix published	NVD

Opensuse

Branch	Affected	Fixed in	Source
11.4	= 11.4	no fix published	NVD
12.3	= 12.3	no fix published	NVD
13.1	= 13.1	no fix published	NVD

Mozilla firefox

Branch	Affected	Fixed in	Source
28.0	< 28.0	28.0	NVD
24.x	≥ 24.0, < 24.4	24.4	NVD

12 more products in the sources.

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

Advisories and patches

www.mozilla.orgVendor Advisory
bugzilla.mozilla.orgVendor Advisory

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

NVDCVSS 3.18.8read 2026-10-23
NVDCVSS 2.06.8read 2026-10-23
NVDweakness (CWE)CWE-120read 2026-10-23
FIRST EPSSEPSS score5.0 %2026-10-22

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Published: 2014-03-19
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2014-1509?

Is CVE-2014-1509 actively exploited?

Active exploitation of CVE-2014-1509 has not been confirmed. Its EPSS score was 5.0% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

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

CVE-2014-1509 has a CVSS v3 base score of 8.8 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

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