No exploitation reportedFix available

CVE-2014-9911

Q: Is CVE-2014-9911 actively exploited?

Active exploitation of CVE-2014-9911 has not been confirmed. Its EPSS score was 5.6% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

Q: What is the CVSS score for CVE-2014-9911?

CVE-2014-9911 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

No exploitation reported by the sources we read.

Published2017-01-04
Fixed in54.1
WeaknessCWE-119

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

Stack-based buffer overflow in the ures_getByKeyWithFallback function in common/uresbund.cpp in International Components for Unicode (ICU) before 54.1 for C/C++ allows remote attackers to cause a denial of service or possibly have unspecified other impact via a crafted uloc_getDisplayName call.

Timeline

dates in UTC

2017-01-0420:59CVE 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-2014-9911?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2014-9911?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Icu-project international components for unicode

Branch	Affected	Fixed in	Source
54.1	< 54.1	54.1	NVD

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

Fix

Update Icu-project international components for unicode to 54.1

Advisories and patches

bugs.icu-project.orgPatch · Vendor Advisory
bugs.php.netPatch
bugzilla.redhat.comPatch

Detection

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

Sources

NVDCVSS 3.09.8read 2026-10-23
NVDCVSS 2.07.5read 2026-10-23
NVDweakness (CWE)CWE-119read 2026-10-23
FIRST EPSSEPSS score5.6 %2026-10-22

Technical details

CVSS v3 Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published: 2017-01-04
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2014-9911?

Is CVE-2014-9911 actively exploited?

Active exploitation of CVE-2014-9911 has not been confirmed. Its EPSS score was 5.6% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2014-9911?

CVE-2014-9911 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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