CVE-2025-5222

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

State: Published
Severity: 7.0 High
Published: May 27, 2025
Updated: Oct 21, 2026
Reserved: May 26, 2025

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.

Scores

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

Weaknesses

CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

Affected Products

Product	Versions
icu	before 78.1Affected
Red Hat Enterprise Linux 10Red Hat	0:74.2-5.el10_0 and laterNot affected
Red Hat Enterprise Linux 9Red Hat	0:67.1-10.el9_6 and laterNot affected
Red Hat Enterprise Linux 9Red Hat	0:67.1-10.el9_6 and laterNot affected
Red Hat Enterprise Linux 9.0 Update Services for SAP SolutionsRed Hat	0:67.1-10.el9_0 and laterNot affected
Red Hat Enterprise Linux 9.2 Update Services for SAP SolutionsRed Hat	0:67.1-10.el9_2 and laterNot affected
Red Hat Enterprise Linux 9.4 Extended Update SupportRed Hat	0:67.1-10.el9_4 and laterNot affected
Red Hat OpenShift Container Platform 4.13Red Hat	413.92.202609080414-0 and laterNot affected
Red Hat OpenShift Container Platform 4.14Red Hat	414.92.202608172040-0 and laterNot affected
Red Hat OpenShift Container Platform 4.15Red Hat	415.92.202608180329-0 and laterNot affected
Red Hat OpenShift Container Platform 4.16Red Hat	416.94.202608150307-0 and laterNot affected
Red Hat OpenShift Container Platform 4.17Red Hat	417.94.202608250221-0 and laterNot affected
Red Hat OpenShift Container Platform 4.18Red Hat	418.94.202608111829-0 and laterNot affected
Red Hat OpenShift Container Platform 4.19Red Hat	4.19.9.6.202608120446-0 and laterNot affected
Red Hat OpenShift Container Platform 4.20Red Hat	4.20.9.6.202608121719-0 and laterNot affected
Red Hat Enterprise Linux 6Red Hat
Red Hat Enterprise Linux 7Red Hat
Red Hat Enterprise Linux 8Red Hat
Red Hat Enterprise Linux 8Red Hat
Red Hat OpenShift Container Platform 4Red Hat

References

RHSA-2025:11888vendor-advisory
RHSA-2025:12083vendor-advisory
RHSA-2025:12331vendor-advisory
RHSA-2025:12332vendor-advisory
RHSA-2025:12333vendor-advisory
RHSA-2026:54544vendor-advisory
RHSA-2026:54553vendor-advisory
RHSA-2026:54581vendor-advisory
RHSA-2026:56786vendor-advisory
RHSA-2026:56853vendor-advisory
RHSA-2026:56911vendor-advisory
RHSA-2026:60019vendor-advisory
RHSA-2026:65839vendor-advisory
https://access.redhat.com/security/cve/CVE-2025-5222vdb-entry
RHBZ#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.html
https://cert-portal.siemens.com/productcert/html/ssa-585531.html

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