HOMEVULNERABILITIESCVE-2017-14952
CRITICAL

CVE-2017-14952

CWE-415Published: October 16, 2017· Updated: Jun 17, 2026

9.8
CVSS v3.1

Official Description

Double free in i18n/zonemeta.cpp in International Components for Unicode (ICU) for C/C++ through 59.1 allows remote attackers to execute arbitrary code via a crafted string, aka a "redundant UVector entry clean up function call" issue.

NVD Source

Technical Analysis

CVE-2017-14952 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

icu-project1 product(s)
international components for unicode
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
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Official Patches & Advisories

PATCHhttp://bugs.icu-project.org/trac/changeset/40324/trunk/icu4c/source/i18n/zonemeta.cpp
PATCHhttp://bugs.icu-project.org/trac/changeset/40324/trunk/icu4c/source/i18n/zonemeta.cpp
ADVISORYhttp://www.sourcebrella.com/blog/double-free-vulnerability-international-components-unicode-icu/
ADVISORYhttp://www.sourcebrella.com/blog/double-free-vulnerability-international-components-unicode-icu/

All References (6)

→
http://bugs.icu-project.org/trac/changeset/40324/trunk/icu4c/source/i18n/zonemeta.cppIssue Tracking · Patch
→
http://www.sourcebrella.com/blog/double-free-vulnerability-international-components-unicode-icu/Third Party Advisory
→
https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html
→
http://bugs.icu-project.org/trac/changeset/40324/trunk/icu4c/source/i18n/zonemeta.cppIssue Tracking · Patch
→
http://www.sourcebrella.com/blog/double-free-vulnerability-international-components-unicode-icu/Third Party Advisory
→
https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html

Quick Facts

CVE IDCVE-2017-14952
CVSS Score9.8 / 10
SeverityCRITICAL
WeaknessCWE-415
CISA KEVNo
Affected1 vendor(s)
PublishedOct 16, 2017

Related CVEs (CWE-415)

CVE-2018-0101
10.0
CVE-2016-5772
9.8
CVE-2016-3132
9.8
CVE-2015-8880
9.8
CVE-2016-5768
9.8
CVE-2017-5334
9.8

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2017-14952 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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