Description
A stack buffer overflow was found in Internationl components for unicode (ICU ). While running the genrb binary, the 'subtag' struct overflowed at the SRBRoot::addTag function. This issue may lead to memory corruption and local arbitrary code execution.
Affected products
unicode: international components for unicode
References10
- access.redhat.com/errata/RHSA-2025:11888 Vendor Advisory
- access.redhat.com/errata/RHSA-2025:12083 Vendor Advisory
- access.redhat.com/errata/RHSA-2025:12331 Vendor Advisory
- access.redhat.com/errata/RHSA-2025:12332 Vendor Advisory
- access.redhat.com/errata/RHSA-2025:12333 Vendor Advisory
- access.redhat.com/security/cve/CVE-2025-5222 Vendor Advisory
- access.redhat.com/errata/RHSA-2026:54544
- access.redhat.com/errata/RHSA-2026:54553
- access.redhat.com/errata/RHSA-2026:54581
- access.redhat.com/errata/RHSA-2026:56786
Metrics
- CVSS 3.1
-
7.0
HIGH
Score source: CNA
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H - EPSS — exploit probability
- 0% percentile: 38 · as of 7 November 2026
- CWE
- CWE-120
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