CVE-2025-5222

low-risk

Published 2025-05-27

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.

Do I need to act?

0.05% chance of exploitation

EPSS score — low exploit probability

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 7.0/10 High

LOCAL / HIGH complexity

Affected Products (1)

International Components For Unicode

Affected Vendors

Unicode

References (8)

Vendor Advisory https://access.redhat.com/errata/RHSA-2025:11888

Vendor Advisory https://access.redhat.com/errata/RHSA-2025:12083

Vendor Advisory https://access.redhat.com/errata/RHSA-2025:12331

Vendor Advisory https://access.redhat.com/errata/RHSA-2025:12332

Vendor Advisory https://access.redhat.com/errata/RHSA-2025:12333

Vendor Advisory https://access.redhat.com/security/cve/CVE-2025-5222

Issue Tracking https://bugzilla.redhat.com/show_bug.cgi?id=2368600

Mailing List https://lists.debian.org/debian-lts-announce/2025/06/msg00015.html

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low-risk

Severity 18/34 · Moderate

Exploitability 0/34 · Minimal

Exposure 5/34 · Minimal