Aggregates CVE and security vulnerability intelligence across all icu-project-related products, including CVSS, EPSS, publication dates, and vulnerability intelligence data.
Historical issues mainly involve vendor risk buffer overflow and vendor risk memory corruption and related problems; some flaws may lead to vendor impact application crash and vendor impact memory corruption.
| CVE | Summary | Source | Max CVSS | EPSS % | Published | Updated |
|---|---|---|---|---|---|---|
| CVE-2020-10531 | An issue was discovered in International Components for Unicode (ICU) for C/C++ through 66.1. An integer overflow, leading to a heap-based buffer overflow, exists in the UnicodeString::doAppend() function in common/unistr.cpp. | [email protected] | 8.8 | 0.79% | 2020-03-12 | 2024-11-21 |
| CVE-2018-18928 | International Components for Unicode (ICU) for C/C++ 63.1 has an integer overflow in number::impl::DecimalQuantity::toScientificString() in i18n/number_decimalquantity.cpp. | [email protected] | 9.8 | 0.65% | 2018-11-04 | 2024-11-21 |
| CVE-2017-15396 | A stack buffer overflow in NumberingSystem in International Components for Unicode (ICU) for C/C++ before 60.2, as used in V8 in Google Chrome prior to 62.0.3202.75 and other products, allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. | [email protected] | 6.5 | 1.98% | 2018-08-28 | 2024-11-21 |
| CVE-2017-15422 | Integer overflow in international date handling in International Components for Unicode (ICU) for C/C++ before 60.1, as used in V8 in Google Chrome prior to 63.0.3239.84 and other products, allowed a remote attacker to perform an out of bounds memory read via a crafted HTML page. | [email protected] | 6.5 | 2.60% | 2018-08-28 | 2024-11-21 |
| CVE-2017-17484 | The ucnv_UTF8FromUTF8 function in ucnv_u8.cpp in International Components for Unicode (ICU) for C/C++ through 60.1 mishandles ucnv_convertEx calls for UTF-8 to UTF-8 conversion, which allows remote attackers to cause a denial of service (stack-based buffer overflow and application crash) or possibly have unspecified other impact via a crafted string, as demonstrated by ZNC. | [email protected] | 9.8 | 4.47% | 2017-12-10 | 2026-05-13 |
| 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. | [email protected] | 9.8 | 2.94% | 2017-10-16 | 2026-05-13 |
| CVE-2014-9654 | The Regular Expressions package in International Components for Unicode (ICU) for C/C++ before 2014-12-03, as used in Google Chrome before 40.0.2214.91, calculates certain values without ensuring that they can be represented in a 24-bit field, which allows remote attackers to cause a denial of service (memory corruption) or possibly have unspecified other impact via a crafted string, a related issue to CVE-2014-7923. | [email protected] | 9.8 | 1.67% | 2017-04-24 | 2026-05-13 |
| CVE-2017-7868 | International Components for Unicode (ICU) for C/C++ before 2017-02-13 has an out-of-bounds write caused by a heap-based buffer overflow related to the utf8TextAccess function in common/utext.cpp and the utext_moveIndex32* function. | [email protected] | 7.5 | 1.04% | 2017-04-14 | 2026-05-13 |
| CVE-2017-7867 | International Components for Unicode (ICU) for C/C++ before 2017-02-13 has an out-of-bounds write caused by a heap-based buffer overflow related to the utf8TextAccess function in common/utext.cpp and the utext_setNativeIndex* function. | [email protected] | 7.5 | 1.12% | 2017-04-14 | 2026-05-13 |
| CVE-2014-9911 | 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. | [email protected] | 9.8 | 1.80% | 2017-01-04 | 2026-05-06 |
| CVE-2016-7415 | Stack-based buffer overflow in the Locale class in common/locid.cpp in International Components for Unicode (ICU) through 57.1 for C/C++ allows remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact via a long locale string. | [email protected] | 9.8 | 1.21% | 2016-09-17 | 2026-05-06 |
| CVE-2016-6293 | The uloc_acceptLanguageFromHTTP function in common/uloc.cpp in International Components for Unicode (ICU) through 57.1 for C/C++ does not ensure that there is a '\0' character at the end of a certain temporary array, which allows remote attackers to cause a denial of service (out-of-bounds read) or possibly have unspecified other impact via a call with a long httpAcceptLanguage argument. | [email protected] | 9.8 | 1.07% | 2016-07-25 | 2026-05-06 |
| CVE-2015-5922 | Unspecified vulnerability in International Components for Unicode (ICU) before 53.1.0, as used in Apple OS X before 10.11 and watchOS before 2, has unknown impact and attack vectors. | [email protected] | 10.0 | 1.04% | 2015-10-09 | 2026-05-06 |
| CVE-2014-8147 | The resolveImplicitLevels function in common/ubidi.c in the Unicode Bidirectional Algorithm implementation in ICU4C in International Components for Unicode (ICU) before 55.1 uses an integer data type that is inconsistent with a header file, which allows remote attackers to cause a denial of service (incorrect malloc followed by invalid free) or possibly execute arbitrary code via crafted text. | [email protected] | 7.5 | 41.90% | 2015-05-25 | 2026-05-06 |
| CVE-2014-8146 | The resolveImplicitLevels function in common/ubidi.c in the Unicode Bidirectional Algorithm implementation in ICU4C in International Components for Unicode (ICU) before 55.1 does not properly track directionally isolated pieces of text, which allows remote attackers to cause a denial of service (heap-based buffer overflow) or possibly execute arbitrary code via crafted text. | [email protected] | 7.5 | 25.81% | 2015-05-25 | 2026-05-06 |
| CVE-2014-7940 | The collator implementation in i18n/ucol.cpp in International Components for Unicode (ICU) 52 through SVN revision 293126, as used in Google Chrome before 40.0.2214.91, does not initialize memory for a data structure, which allows remote attackers to cause a denial of service or possibly have unspecified other impact via a crafted character sequence. | [email protected] | 7.5 | 2.42% | 2015-01-22 | 2026-05-06 |
| CVE-2014-7926 | The Regular Expressions package in International Components for Unicode (ICU) 52 before SVN revision 292944, as used in Google Chrome before 40.0.2214.91, allows remote attackers to cause a denial of service (memory corruption) or possibly have unspecified other impact via vectors related to a zero-length quantifier. | [email protected] | 7.5 | 2.56% | 2015-01-22 | 2026-05-06 |
| CVE-2014-7923 | The Regular Expressions package in International Components for Unicode (ICU) 52 before SVN revision 292944, as used in Google Chrome before 40.0.2214.91, allows remote attackers to cause a denial of service (memory corruption) or possibly have unspecified other impact via vectors related to a look-behind expression. | [email protected] | 7.5 | 2.56% | 2015-01-22 | 2026-05-06 |
| CVE-2011-4599 | Stack-based buffer overflow in the _canonicalize function in common/uloc.c in International Components for Unicode (ICU) before 49.1 allows remote attackers to execute arbitrary code via a crafted locale ID that is not properly handled during variant canonicalization. | [email protected] | 7.5 | 24.11% | 2012-06-21 | 2026-04-29 |
| CVE-2007-4771 | Heap-based buffer overflow in the doInterval function in regexcmp.cpp in libicu in International Components for Unicode (ICU) 3.8.1 and earlier allows context-dependent attackers to cause a denial of service (memory consumption) and possibly have unspecified other impact via a regular expression that writes a large amount of data to the backtracking stack. NOTE: some of these details are obtained from third party information. | [email protected] | 9.3 | 2.33% | 2008-01-29 | 2026-04-23 |