Vulnerability Report

CVE-2025-5222

Title: Unicode International Components For Unicode Memory Corruption

Memory Corruption

Proof Of Concept

PoC Available for CVE-2025-5222

CWE Category CWE-120
Published Date May 27, 2025
Modified Date Apr 23, 2026
Exploit Status Available
Score 7.0 CVSS v3.1
Exploit Probability (EPSS)
0.03%

Vulnerability Summary

CVE-2025-5222: 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.

Impacted Vendors

I
icu-project 1
U
unicode 1

Reference Links

https://access.redhat.com/errata/RHSA-2025:11888 https://access.redhat.com/errata/RHSA-2025:12083 https://access.redhat.com/errata/RHSA-2025:12331 https://access.redhat.com/errata/RHSA-2025:12332 https://access.redhat.com/errata/RHSA-2025:12333 https://access.redhat.com/security/cve/CVE-2025-5222 https://bugzilla.redhat.com/show_bug.cgi?id=2368600 https://lists.debian.org/debian-lts-announce/2025/06/msg00015.html
CVSS v3.1
Source Entity [email protected]
Severity HIGH
7.0
Attack Vector
LOCAL
Complexity
HIGH
Privileges
N/A
Interaction
REQUIRED
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2025-5222 Exploits & PoCs (Proof Of Concept)

GitHub https://github.com/berkley4/icu-74-debian
View Code
MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data or affected products updated.

PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector LOCAL
Complexity HIGH
Privileges N/A
Interaction REQUIRED
CVSS Vector String CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected Stack

No specific products linked.