VulnerabilityModified
CVE-2025-5222
A stack buffer overflow was found in Internationl components for unicode (ICU ).
HIGH 7.0EPSS 0.43%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.43%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 7.0 HIGHCVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS
- 0.43% probability · 36th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-120
- Affected
- unicode/international components for unicode
- Source
- secalert@redhat.com
References
- https://access.redhat.com/errata/RHSA-2025:11888Vendor Advisory
- https://access.redhat.com/errata/RHSA-2025:12083Vendor Advisory
- https://access.redhat.com/errata/RHSA-2025:12331Vendor Advisory
- https://access.redhat.com/errata/RHSA-2025:12332Vendor Advisory
- https://access.redhat.com/errata/RHSA-2025:12333Vendor Advisory
- https://access.redhat.com/errata/RHSA-2026:54544
- https://access.redhat.com/errata/RHSA-2026:54553
- https://access.redhat.com/errata/RHSA-2026:54581
- https://access.redhat.com/errata/RHSA-2026:56786
- https://access.redhat.com/errata/RHSA-2026:56853
- https://access.redhat.com/errata/RHSA-2026:56911
- https://access.redhat.com/errata/RHSA-2026:60019
- https://access.redhat.com/security/cve/CVE-2025-5222Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=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.htmlMailing List
- https://cert-portal.siemens.com/productcert/html/ssa-585531.html
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.