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CVE-2017-14952

33
FAUCET Score

CVE-2017-14952 is a critical double free vulnerability in International Components for Unicode (ICU) for C/C++ through version 59.1, specifically within the i18n/zonemeta.cpp component. This flaw allows remote attackers to execute arbitrary code by supplying a crafted string, stemming from a redundant UVector entry cleanup function call. With a CVSS score of 9.8 (Critical), it presents a high risk due to its network-based attack vector, low attack complexity, and potential for complete compromise of confidentiality, integrity, and availability. While there is no evidence of active exploitation or publicly available exploit code in Metasploit, Nuclei, or ExploitDB, the vulnerability has garnered significant community discussion with over 10 mentions, indicating awareness and potential interest.

Impacted Technologies

VendorProductVersion(s)CPE
<= 59.1CPE matchmatch criteria
cpe:2.3:a:icu-project:international_components_for_unicode:*:*:*:*:*:c\/c\+\+:*:*

CVSS Data

CVSS version used by this source: 3.0

9.8CRITICAL

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
5.10%
Probability of exploitation in next 30 days
EPSS Percentile
91.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0510 is in the 86th percentile among its peer group of 36,862 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (2)

redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: icu
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: icu

Vendor Advisories (1)

redhatCVE-2017-14952Low

icu: Double free in i18n/zonemeta.cpp

Aug 9, 2017

References

bugs.icu-project.org / trac/changeset/40324/trunk/icu4c/source/i18n/zonemeta.cpp
Issue TrackingPatch
oracle.com / technetwork/security-advisory/cpuapr2019-5072813.html
sourcebrella.com / blog/double-free-vulnerability-international-components-unicode-icu
Third Party Advisory