International Components for Unicode (ICU) for C/C++ 63.1 has an integer overflow in…
Priority MEDIUM 47CWE-190Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-190 and the CVSS impact.
Summary
International Components for Unicode (ICU) for C/C++ 63.1 has an integer overflow in number::impl::DecimalQuantity::toScientificString() in i18n/number_decimalquantity.cpp.
Why it matters now
EPSS 0.02904 87th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:icu-project:international_components_for_unicode:63.1:*:*:*:*:c\/c\+\+:*:* | 63.1 | Vulnerable | Icu-project |
- cpe:2.3:a:icu-project:international_components_for_unicode:63.1:*:*:*:*:c\/c\+\+:*:* Versions 63.1 Vulnerable ·Icu-project
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
Not affected: 5 products
- Red Hat Enterprise Linux 5
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Virtualization 4
Timeline
- 2026-10-02 Threatist record created from CVE-2018-18928
- 2026-10-03 Alias added: GHSA-m2ch-6888-5mgr
References
More Icu-project International Components For Unicode vulnerabilities
- TI-2014-06761 The resolveImplicitLevels function in common/ubidi.c in the Unicode Bidirectional… CVSS 2.0HIGH 7.5
- TI-2014-06762 The resolveImplicitLevels function in common/ubidi.c in the Unicode Bidirectional… CVSS 2.0HIGH 7.5
- TI-2016-06316 Stack-based buffer overflow in the Locale class in common/locid.cpp in International… CVSS 3.0CRITICAL 9.8
- TI-2014-08077 Stack-based buffer overflow in the ures_getByKeyWithFallback function in… CVSS 3.0CRITICAL 9.8
- TI-2017-10973 Double free in i18n/zonemeta.cpp in International Components for Unicode (ICU) for C/C++… CVSS 3.0CRITICAL 9.8
- TI-2016-05387 The uloc_acceptLanguageFromHTTP function in common/uloc.cpp in International Components… CVSS 3.0CRITICAL 9.8
Sources
- CVE-2018-18928 · CVE Program
- CVE-2018-18928 · NVD
- FIRST EPSS
- GHSA-m2ch-6888-5mgr · GitHub Advisory Database · CC BY 4.0
- CVE-2018-18928 · Red Hat security data · CC BY 4.0
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