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Fencer Vulns
high 7.0

CVE-2025-5222 json

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

published 2025-05-27 17 mo ago modified 2026-11-05 3 d ago also EUVD-2025-16306

cvss
7.0
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 38%
public exploits
0
none known

Summary

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.

Patch / fix

  • Red Hat Red Hat Enterprise Linux 10 0:74.2-5.el10_0
  • Red Hat Red Hat Enterprise Linux 9 0:67.1-10.el9_6
  • Red Hat Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions 0:67.1-10.el9_0
  • Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions 0:67.1-10.el9_2
  • Red Hat Red Hat Enterprise Linux 9.4 Extended Update Support 0:67.1-10.el9_4
  • Red Hat Red Hat OpenShift Container Platform 4.13 413.92.202609080414-0
  • Red Hat Red Hat OpenShift Container Platform 4.14 414.92.202608172040-0
  • Red Hat Red Hat OpenShift Container Platform 4.15 415.92.202608180329-0
  • Red Hat Red Hat OpenShift Container Platform 4.16 416.94.202608150307-0
  • Red Hat Red Hat OpenShift Container Platform 4.17 417.94.202608250221-0
  • Red Hat Red Hat OpenShift Container Platform 4.18 418.94.202608111829-0
  • Red Hat Red Hat OpenShift Container Platform 4.19 4.19.9.6.202608120446-0
  • Red Hat Red Hat OpenShift Container Platform 4.20 4.20.9.6.202608121719-0
  • Siemens SIDIS Secured SmartPlug V7.26.0310
  • icu Debian 12 72.1-3+deb12u1
  • icu Debian 14, Debian 13 76.1-4

debian advisories DEBIAN-CVE-2025-5222

  • icu RHEL 9 67.1-10.el9_6
  • libicu RHEL 9 67.1-10.el9_6
  • icu RHEL 10.0 74.2-5.el10_0
  • libicu RHEL 10.0 74.2-5.el10_0
  • icu RHEL 9.0 E4S 67.1-10.el9_0
  • libicu RHEL 9.0 E4S 67.1-10.el9_0
  • icu RHEL 9.2 E4S 67.1-10.el9_2
  • libicu RHEL 9.2 E4S 67.1-10.el9_2

red hat advisories RHSA-2025:12333RHSA-2025:12331RHSA-2025:12332RHSA-2025:12083RHSA-2025:11888

  • icu SLES for SAP 15 SP5, SLES for SAP 15 SP4, SLES for SAP 15 SP3 +20 more 65.1-150200.4.15.1
  • icu SLES for SAP 15 SP5, SLES for SAP 15 SP4, SLES for SAP 15 SP3 +9 more 60.2-150000.3.18.1
  • icu SLES LTSS Extended Security 12 SP5, SLES 12 SP5-LTSS 52.1-8.16.1

suse advisories SUSE-SU-2025:02216-1SUSE-SU-2025:02079-1SUSE-SU-2025:02059-1

  • icu openSUSE Tumbleweed 77.1-3.1

opensuse advisories openSUSE-SU-2025:15230-1

  • icu AlmaLinux 9 67.1-10.el9_6
  • libicu AlmaLinux 9 67.1-10.el9_6
  • icu AlmaLinux 10 74.2-5.el10_0
  • libicu AlmaLinux 10 74.2-5.el10_0

almalinux advisories ALSA-2025:12083ALSA-2025:11888

  • icu Rocky Linux 9 67.1-10.el9_6
  • icu Rocky Linux 10 74.2-5.el10_0

rocky linux advisories RLSA-2025:12083RLSA-2025:11888

  • icu Alpine 3.19 74.1-r1
  • icu Alpine 3.21, Alpine 3.20 74.2-r1
  • icu Alpine 3.24, Alpine 3.23, Alpine 3.22 76.1-r1

alpine advisories ALPINE-CVE-2025-5222

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • icu CBL-Mariner 2.0 68.2.0.9-2
  • icu Azure Linux 3.0 72.1.0.3-2
  • nodejs Azure Linux 3.0 20.14.0-10
  • nodejs18 CBL-Mariner 2.0 18.20.3-10

azure linux advisories AZL-66147AZL-66156AZL-69692AZL-69706

Azure Linux vulnerability data, Copyright (c) Microsoft Corporation, from https://github.com/microsoft/AzureLinuxVulnerabilityData via OSV, under the MIT licence; changed: normalised to fixed package versions per release. MIT

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2025-5222 updated cvss 7.0

icu: Stack buffer overflow in the SRBRoot::addTag function

  • Red Hat Enterprise Linux 6 icu, libicu Red Hat Enterprise Linux 7 icu, libicu
    affected: workaround, no fix planned “Out of support scope”
  • Red Hat Enterprise Linux 8 icu, libicu, mingw32-icu, mingw64-icu
    affected: workaround, no fix available “Fix deferred”
  • Red Hat Enterprise Linux AppStream (v. 9) icu 67.1-10.el9_6
    fixed: vendor fix RHSA-2025:12083
  • Red Hat Enterprise Linux AppStream (v. 10) icu 74.2-5.el10_0
    fixed: vendor fix RHSA-2025:11888
  • Red Hat Enterprise Linux AppStream E4S (v.9.0) icu 67.1-10.el9_0
    fixed: vendor fix RHSA-2025:12333
  • Red Hat Enterprise Linux AppStream E4S (v.9.2) icu 67.1-10.el9_2
    fixed: vendor fix RHSA-2025:12331
  • Red Hat Enterprise Linux AppStream EUS (v.9.4) icu 67.1-10.el9_4
    fixed: vendor fix RHSA-2025:12332
  • Red Hat Enterprise Linux BaseOS (v. 9) icu 67.1-10.el9_6, libicu 67.1-10.el9_6
    fixed: vendor fix RHSA-2025:12083
show 13 more
  • Red Hat Enterprise Linux BaseOS (v. 10) icu 74.2-5.el10_0, libicu 74.2-5.el10_0
    fixed: vendor fix RHSA-2025:11888
  • Red Hat Enterprise Linux BaseOS E4S (v.9.0) icu 67.1-10.el9_0, libicu 67.1-10.el9_0
    fixed: vendor fix RHSA-2025:12333
  • Red Hat Enterprise Linux BaseOS E4S (v.9.2) icu 67.1-10.el9_2, libicu 67.1-10.el9_2
    fixed: vendor fix RHSA-2025:12331
  • Red Hat Enterprise Linux BaseOS EUS (v.9.4) icu 67.1-10.el9_4, libicu 67.1-10.el9_4
    fixed: vendor fix RHSA-2025:12332
  • Red Hat OpenShift Container Platform 4.13 rhcos 413.92.202609080414
    fixed: vendor fix RHSA-2026:65839
  • Red Hat OpenShift Container Platform 4.14 rhcos 414.92.202608172040
    fixed: vendor fix RHSA-2026:56786
  • Red Hat OpenShift Container Platform 4.15 rhcos 415.92.202608180329
    fixed: vendor fix RHSA-2026:56911
  • Red Hat OpenShift Container Platform 4.16 rhcos 416.94.202608150307
    fixed: vendor fix RHSA-2026:56853
  • Red Hat OpenShift Container Platform 4.17 rhcos 417.94.202608250221
    fixed: vendor fix RHSA-2026:60019
  • Red Hat OpenShift Container Platform 4.18 rhcos 418.94.202608111829
    fixed: vendor fix RHSA-2026:54544
  • Red Hat OpenShift Container Platform 4.19 rhcos 4.19.9.6.202608120446
    fixed: vendor fix RHSA-2026:54553
  • Red Hat OpenShift Container Platform 4.20 rhcos 4.20.9.6.202608121719
    fixed: vendor fix RHSA-2026:54581
  • Red Hat OpenShift Container Platform 4 openshift/ose-rhel-coreos-8
    not affected: vulnerable code not in execute path

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

cisa ICSA-26-202-04 updated cvss 7.0

Siemens SIDIS Secured SmartPlug

  • Siemens SIDIS Secured SmartPlug < 7.26.0310
    affected: fixed in V7.26.0310

Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
17 mo ago

Exploit prediction

0.44% chance of exploitation in the next 30 days, higher than 38% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 7.0 CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected products

  • Red Hat Red Hat Enterprise Linux 10
  • Red Hat Red Hat Enterprise Linux 9
  • Red Hat Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions
  • Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions
  • Red Hat Red Hat Enterprise Linux 9.4 Extended Update Support
  • Red Hat Red Hat OpenShift Container Platform 4.13
  • Red Hat Red Hat OpenShift Container Platform 4.14
  • Red Hat Red Hat OpenShift Container Platform 4.15
  • Red Hat Red Hat OpenShift Container Platform 4.16
  • Red Hat Red Hat OpenShift Container Platform 4.17
  • Red Hat Red Hat OpenShift Container Platform 4.18
  • Red Hat Red Hat OpenShift Container Platform 4.19
  • Red Hat Red Hat OpenShift Container Platform 4.20
  • Red Hat Red Hat Enterprise Linux 6
  • Red Hat Red Hat Enterprise Linux 7
  • Red Hat Red Hat Enterprise Linux 8
  • Red Hat Red Hat OpenShift Container Platform 4
  • Siemens SIDIS Secured SmartPlug

Classification

Weakness
  • CWE-120 Buffer Copy without Checking Size of Input

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.