How severe is CVE-2017-14952?

CVE-2017-14952 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2017-14952 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (91st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-14952?

CVE-2017-14952 affects Icu-project International Components For Unicode. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2017-14952?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2017-14952 published?

CVE-2017-14952 was published on 2017-10-16 and last updated on 2026-06-17.

CVE-2017-14952

CVE-2017-14952 is a critical-severity vulnerability in Icu-project International Components For Unicode with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-415.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 5% (91st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-415
Affected product: Icu-project International Components For Unicode
Published: 2017-10-16
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2017-14952?: 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.
How severe is CVE-2017-14952?: CVE-2017-14952 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2017-14952 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (91st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-14952?: CVE-2017-14952 affects Icu-project International Components For Unicode. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2017-14952?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2017-14952 published?: CVE-2017-14952 was published on 2017-10-16 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:icu-project:international_components_for_unicode:*:*:*:*:*:c\/c\+\+:*:*

More vulnerabilities in Icu-project International Components For Unicode

CVE-2015-5922 — Critical (CVSS 10.0): Unspecified vulnerability in International Components for Unicode (ICU) before 53.1.0, as used in Apple OS X before…
CVE-2018-18928 — Critical (CVSS 9.8): International Components for Unicode (ICU) for C/C++ 63.1 has an integer overflow in…
CVE-2017-17484 — Critical (CVSS 9.8): The ucnv_UTF8FromUTF8 function in ucnv_u8.cpp in International Components for Unicode (ICU) for C/C++ through 60.1…
CVE-2014-9654 — Critical (CVSS 9.8): The Regular Expressions package in International Components for Unicode (ICU) for C/C++ before 2014-12-03, as used in…
CVE-2014-9911 — Critical (CVSS 9.8): Stack-based buffer overflow in the ures_getByKeyWithFallback function in common/uresbund.cpp in International…
CVE-2016-7415 — Critical (CVSS 9.8): Stack-based buffer overflow in the Locale class in common/locid.cpp in International Components for Unicode (ICU)…

All CVEs affecting Icu-project International Components For Unicode →

Other CWE-415 (Double Free) vulnerabilities

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CVE-2020-37239 — Critical (CVSS 9.8): libbabl 0.1.62 contains a broken double free detection vulnerability that allows attackers to bypass memory safety…
CVE-2026-43011 — Critical (CVSS 9.8): In the Linux kernel, the following vulnerability has been resolved: net/x25: Fix potential double free of skb When…
CVE-2026-31609 — Critical (CVSS 9.8): In the Linux kernel, the following vulnerability has been resolved: smb: client: avoid double-free in…
CVE-2026-31608 — Critical (CVSS 9.8): In the Linux kernel, the following vulnerability has been resolved: smb: server: avoid double-free in…

Browse all CWE-415 (Double Free) vulnerabilities →