CVE record · CVE-2025-5222

Icu: stack buffer overflow in the srbroot::addtag function

CVSS 7.0 HighEPSS 0.0044 · 38th percentile

Published by the CVE Program (CNA: redhat) at 27 May 2025, 20:51 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
Vendor	Product	Versions
Not given	Not given Package name: icu https://unicode-org.atlassian.net/	affected before 78.1 semver Other versions: unaffected
Red Hat	Red Hat Enterprise Linux 10 Package name: icu https://access.redhat.com/downloads/content/package-browser/	unaffected 0:74.2-5.el10_0 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 9 Package name: icu https://access.redhat.com/downloads/content/package-browser/	unaffected 0:67.1-10.el9_6 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 9 Package name: icu https://access.redhat.com/downloads/content/package-browser/	unaffected 0:67.1-10.el9_6 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions Package name: icu https://access.redhat.com/downloads/content/package-browser/	unaffected 0:67.1-10.el9_0 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Package name: icu https://access.redhat.com/downloads/content/package-browser/	unaffected 0:67.1-10.el9_2 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 9.4 Extended Update Support Package name: icu https://access.redhat.com/downloads/content/package-browser/	unaffected 0:67.1-10.el9_4 to before * rpm Other versions: affected
Red Hat	Red Hat OpenShift Container Platform 4.13 Package name: openshift/ose-rhel-coreos-9 https://access.redhat.com/downloads/content/package-browser/	unaffected 413.92.202609080414-0 to before * rpm Other versions: affected
Red Hat	Red Hat OpenShift Container Platform 4.14 Package name: openshift/ose-rhel-coreos-9 https://access.redhat.com/downloads/content/package-browser/	unaffected 414.92.202608172040-0 to before * rpm Other versions: affected
Red Hat	Red Hat OpenShift Container Platform 4.15 Package name: openshift/ose-rhel-coreos-9 https://access.redhat.com/downloads/content/package-browser/	unaffected 415.92.202608180329-0 to before * rpm Other versions: affected
Red Hat	Red Hat OpenShift Container Platform 4.16 Package name: openshift/ose-rhel-coreos-9 https://access.redhat.com/downloads/content/package-browser/	unaffected 416.94.202608150307-0 to before * rpm Other versions: affected
Red Hat	Red Hat OpenShift Container Platform 4.17 Package name: openshift/ose-rhel-coreos-9 https://access.redhat.com/downloads/content/package-browser/	unaffected 417.94.202608250221-0 to before * rpm Other versions: affected
Red Hat	Red Hat OpenShift Container Platform 4.18 Package name: openshift/ose-rhel-coreos-9 https://access.redhat.com/downloads/content/package-browser/	unaffected 418.94.202608111829-0 to before * rpm Other versions: affected
Red Hat	Red Hat OpenShift Container Platform 4.19 Package name: openshift/ose-rhel-coreos-9 https://access.redhat.com/downloads/content/package-browser/	unaffected 4.19.9.6.202608120446-0 to before * rpm Other versions: affected
Red Hat	Red Hat OpenShift Container Platform 4.20 Package name: openshift/ose-rhel-coreos-9 https://access.redhat.com/downloads/content/package-browser/	unaffected 4.20.9.6.202608121719-0 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 6 Package name: icu https://access.redhat.com/downloads/content/package-browser/	No versions given Other versions: unknown
Red Hat	Red Hat Enterprise Linux 7 Package name: icu https://access.redhat.com/downloads/content/package-browser/	No versions given Other versions: unknown
Red Hat	Red Hat Enterprise Linux 8 Package name: icu https://access.redhat.com/downloads/content/package-browser/	No versions given Other versions: affected
Red Hat	Red Hat Enterprise Linux 8 Package name: mingw-icu https://access.redhat.com/downloads/content/package-browser/	No versions given Other versions: affected
Red Hat	Red Hat OpenShift Container Platform 4 Package name: openshift/ose-rhel-coreos-8 https://access.redhat.com/downloads/content/package-browser/	No versions given Other versions: unaffected

Identifiers: CVE-2025-5222
CNA: redhat
Weakness (CWE): CWE-120
Tags: Red Hat Enterprise Linux 10
Red Hat Enterprise Linux 9
Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions
Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions
Red Hat Enterprise Linux 9.4 Extended Update Support
Red Hat OpenShift Container Platform 4.13
Red Hat OpenShift Container Platform 4.14
Red Hat OpenShift Container Platform 4.15
Memory corruption
Published: 27 May 2025
Updated: 5 Nov 2026

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

Score	Rating	CVSS	Vector	Source
7.0	High	3.1	CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H	CNA (redhat)

CISA KEV Not listed.
EPSS 0.0044, the 38th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

27 May 2025, 20:51 UTC Confirmed by the CVE List
27 May 2025, 21:15 UTC Confirmed by NVD

Sources

References from the CNA

access.redhat.com/errata/RHSA-2025:11888 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2025:12083 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2025:12331 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2025:12332 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2025:12333 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2026:54544 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2026:54553 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2026:54581 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2026:56786 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2026:56853 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2026:56911 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2026:60019 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2026:65839 vendor-advisoryredhat
access.redhat.com/security/cve/CVE-2025-5222 vdb-entryredhat
bugzilla.redhat.com/show_bug.cgi?id=2368600 issue-trackingredhat
unicode-org.atlassian.net/jira/software/c/projects/ICU/issues/ICU-22957

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.