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High 7.0Published May 27, 2025

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 21, 2026
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
from 0:74.2-5.el10_0 not affected
CNA record
from 0:67.1-10.el9_0 not affected
CNA record
from 0:67.1-10.el9_4 not affected
CNA record
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

References

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.

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