CVE-2025-5222

Name: CVE-2025-5222
Creator: NVD / NIST
Published: 2025-05-27T21:15:23.03+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7/10EPSS 0.30%

Last modified Jun 25, 2026

CVE-2025-5222 is a high-severity vulnerability rated 7/10 on the CVSS scale. 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. EPSS estimates a 0.30% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

7/10

CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS Probability

0.30%

21.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-120

Affected Software

Vendor	Product	Versions
Unicode	International Components For Unicode	< 77.1

References

https://access.redhat.com/errata/RHSA-2025:11888Vendor Advisory
https://access.redhat.com/errata/RHSA-2025:12083Vendor Advisory
https://access.redhat.com/errata/RHSA-2025:12331Vendor Advisory
https://access.redhat.com/errata/RHSA-2025:12332Vendor Advisory
https://access.redhat.com/errata/RHSA-2025:12333Vendor Advisory
https://access.redhat.com/security/cve/CVE-2025-5222Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2368600Issue Tracking
https://unicode-org.atlassian.net/jira/software/c/projects/ICU/issues/ICU-22957
https://lists.debian.org/debian-lts-announce/2025/06/msg00015.htmlMailing List

Timeline

Published: May 27, 2025
Last Modified: Jun 25, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2025-5222?

How severe is CVE-2025-5222?

CVE-2025-5222 has a CVSS score of 7/10 (HIGH severity). The EPSS model estimates a 0.30% probability of exploitation in the next 30 days.

How do I fix CVE-2025-5222?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-5222?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST