CVE-2025-5222Icu: stack buffer overflow in the srbroot::addtag function
Updated under an hour ago ()
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It affects Red Hat Enterprise Linux 10 and 5 other products. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 7.0 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
- Weakness (CWE)
- CWE-120
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- redhat
- NVD analysis
- Modified
- Record last updated
- Oct 8, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Red Hat Red Hat Enterprise Linux 10 redhat:enterprise_linux | from 0:74.2-5.el10_0 not affected | CNA record |
from 0:67.1-10.el9_0 not affected | CNA record | |
Red Hat Red Hat Enterprise Linux 9.4 Extended Update Support redhat:rhel_eus | from 0:67.1-10.el9_4 not affected | CNA record |
Red Hat Red Hat OpenShift Container Platform 4.13 redhat:openshift | from 413.92.202609080414-0 not affected | CNA record |
Siemens SIDIS Secured SmartPlug siemens:sidis_secured_smartplug (from the name) | before V7.26.0310 | CISA ADP |
unicode international_components_for_unicode unicode:international_components_for_unicode | before 77.1 | NVD |
References
- https://access.redhat.com/errata/RHSA-2025:11888vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2025:12083vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2025:12331vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2025:12332vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2025:12333vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:54544vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:54553vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:54581vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:56786vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:56853vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:56911vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:60019vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:65839vendor-advisory, x-refsource-redhat
- https://access.redhat.com/security/cve/CVE-2025-5222vdb-entry, x-refsource-redhat
- https://bugzilla.redhat.com/show_bug.cgi?id=2368600issue-tracking, x-refsource-redhat
- https://unicode-org.atlassian.net/jira/software/c/projects/ICU/issues/ICU-22957
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.