Icu: stack buffer overflow in the srbroot::addtag function
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7epss 0.4%
exploitation probability
0.4%top 64% of all CVEs
observed exploitation
nono source reports it
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:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Affected products
icuRed Hat · Red Hat Enterprise Linux 10Red Hat · Red Hat Enterprise Linux 6Red Hat · Red Hat Enterprise Linux 7Red Hat · Red Hat Enterprise Linux 8Red Hat · Red Hat Enterprise Linux 9Red Hat · Red Hat Enterprise Linux 9.0 Update Services for SAP SolutionsRed Hat · Red Hat Enterprise Linux 9.2 Update Services for SAP SolutionsRed Hat · Red Hat Enterprise Linux 9.4 Extended Update SupportRed Hat · Red Hat OpenShift Container Platform 4Red Hat · Red Hat OpenShift Container Platform 4.13Red Hat · Red Hat OpenShift Container Platform 4.14Red Hat · Red Hat OpenShift Container Platform 4.15Red Hat · Red Hat OpenShift Container Platform 4.16Red Hat · Red Hat OpenShift Container Platform 4.17Red Hat · Red Hat OpenShift Container Platform 4.18Red Hat · Red Hat OpenShift Container Platform 4.19Red Hat · Red Hat OpenShift Container Platform 4.20References
https://access.redhat.com/errata/RHSA-2025:11888https://access.redhat.com/errata/RHSA-2025:12083https://access.redhat.com/errata/RHSA-2025:12331https://access.redhat.com/errata/RHSA-2025:12332https://access.redhat.com/errata/RHSA-2025:12333https://access.redhat.com/errata/RHSA-2026:54544https://access.redhat.com/errata/RHSA-2026:54553https://access.redhat.com/errata/RHSA-2026:54581https://access.redhat.com/errata/RHSA-2026:56786https://access.redhat.com/errata/RHSA-2026:56853https://access.redhat.com/errata/RHSA-2026:56911https://access.redhat.com/errata/RHSA-2026:60019