What’s Vulnerable › Vulnerabilities
CVE-2025-5222: Icu: stack buffer overflow in the srbroot::addtag function
- Severity: high (CVSS 7.0 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.4% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2025-05-27 · updated 2026-10-21
- Weakness: CWE-120
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: before 77.1 — fixed in 77.1
How to fix
Upgrade to a fixed version: Unicode International Components For Unicode 77.1. Check the vendor advisory for mitigations.
References
- https://access.redhat.com/errata/RHSA-2025:11888
- https://access.redhat.com/errata/RHSA-2025:12083
- https://access.redhat.com/errata/RHSA-2025:12331
- https://access.redhat.com/errata/RHSA-2025:12332
- https://access.redhat.com/errata/RHSA-2025:12333
- https://access.redhat.com/errata/RHSA-2026:54544
- https://access.redhat.com/errata/RHSA-2026:54553
- https://access.redhat.com/errata/RHSA-2026:54581
- https://access.redhat.com/errata/RHSA-2026:56786
- https://access.redhat.com/errata/RHSA-2026:56853
- https://access.redhat.com/errata/RHSA-2026:56911
- https://access.redhat.com/errata/RHSA-2026:60019
Get alerted when CVE-2025-5222 or the next vulnerability affects your stack