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.
CVE-2017-14952
Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2022-05-14. NVD baseline CVSS 9.8; sources differ by 0.0.
- High severity, but no confirmed exploitation yet
A fix is available — apply it.
- CVSS v3
- 9.8
- EG Score
- 9.8(medium)
- EG Risk
- 51(Track)EG Risk 51/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity98% × 45%Exploitation5% × 40%Automatability30% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 5%
- EPSS %ILE
- 92%
- KEV
- Not listed
Published
October 16, 2017
Last Modified
June 17, 2026
References (6)
- cve@mitrehttp://bugs.icu-project.org/trac/changeset/40324/trunk/icu4c/source/i18n/zonemeta.cpp
- cve@mitrehttp://www.sourcebrella.com/blog/double-free-vulnerability-international-components-unicode-icu/
- cve@mitrehttps://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html
- af854a3a-2127-422b-91ae-364da2661108http://bugs.icu-project.org/trac/changeset/40324/trunk/icu4c/source/i18n/zonemeta.cpp
- af854a3a-2127-422b-91ae-364da2661108http://www.sourcebrella.com/blog/double-free-vulnerability-international-components-unicode-icu/
- af854a3a-2127-422b-91ae-364da2661108https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html
Patch Availability(2)
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| ubuntu | libicu57 (57.1-5ubuntu0.2) @ zesty | 2026-05-20 | ubuntu |
| ubuntu | lib32icu48 (4.8.1.1-3ubuntu0.9) @ precise | 2026-05-20 | ubuntu |
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
Affected Packages
(4 across 4 ecosystems)
Debian:11(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| icu | — | 57.1-7 | — |
Debian:12(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| icu | — | 57.1-7 | — |
Debian:13(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| icu | — | 57.1-7 | — |
Debian:14(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| icu | — | 57.1-7 | — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
All Vendor Advisories
(2)
Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.
Data Freshness Timeline
(refreshed 5× in last 7d / 26× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
Showing the most recent 100 of 137 total refreshes for this CVE.
- 2026-08-21 23:44 UTCEPSS rescore
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Related CVEs(same vendor + same CWE)
Same vendor
10 shownubuntu
- CVE-2004-0989EG 10.0EPSS p97HIGH
- CVE-2004-0990EG 10.0EPSS p98HIGH
- CVE-2004-1010EG 10.0EPSS p95HIGH
- CVE-2004-0941EG 10.0EPSS p95HIGH
- CVE-2004-0981EG 10.0EPSS p93HIGH
- CVE-2004-0882EG 10.0EPSS p96HIGH
- CVE-2004-0888EG 10.0EPSS p95HIGH
- CVE-2004-1012EG 10.0EPSS p93HIGH
- CVE-2004-1013EG 10.0EPSS p93HIGH
- CVE-2004-1018EG 10.0EPSS p97HIGH
Same CWE
10 shownCWE-415
- CVE-2018-0101EG 10.0EPSS p100CRITICAL
- CVE-2007-4773EG 9.8CRITICAL
- CVE-2016-8619NVD 5.3EG 9.8EPSS p92CRITICAL
- CVE-2016-8618NVD 5.3EG 9.8EPSS p91CRITICAL
- CVE-2015-9165EG 9.8CRITICAL
- CVE-2017-18201EG 9.8CRITICAL
- CVE-2017-18174EG 9.8CRITICAL
- CVE-2017-1000232EG 9.8CRITICAL
- CVE-2017-1000231EG 9.8CRITICAL
- CVE-2017-16820EG 9.8EPSS p90CRITICAL
Frequently asked(5)
What is CVE-2017-14952?
When was CVE-2017-14952 disclosed?
Is CVE-2017-14952 actively exploited?
What is the CVSS score of CVE-2017-14952?
How do I remediate CVE-2017-14952?
Dependency Blast Radius
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