7

CVE-2025-5222: Icu: stack buffer overflow in the srbroot::addtag function

Modified
AliasesALPINE-CVE-2025-5222MGASA-2025-0249SUSE-SU-2025:02059-1
Published 27-05-2025Last modified 21-10-2026

Vulnerability summary

CVE-2025-5222 is a high (CVSS 7.0) vulnerability in unicode international_components_for_unicode. EPSS estimates a 0.44% chance of exploitation in the next 30 days, higher than 38.1% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 7, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
7.0/10
010
High · v3.1 (CVE.org)
EPSS score
0.44%
0%100%
Low · +0.01 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 1 · Related 1
SUSE-SU-2025:02079-1

Timeline

  1. 27-05-2025
    PublishedVulnerability first disclosed.
  2. 21-10-2026
    Last modifiedVulnerability information updated.

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 metrics

6 scores · 6 sources · 1 version

EPSS trend

Probability

0.44%

Chance of exploitation in the next 30 days

Percentile

38%

Versus all other CVEs

30-day change

Increase +0.01 pp

From 0.43% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: local access, no authentication, user interaction (CVSS vector). Other conditions: not stated in public data.

Suse14 products
  • icu&distro=SUSE Enterprise Storage 7.1< 60.2-150000.3.18.1
  • icu&distro=SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS< 60.2-150000.3.18.1
  • icu&distro=SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS< 60.2-150000.3.18.1
  • icu&distro=SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS< 60.2-150000.3.18.1
  • icu&distro=SUSE Linux Enterprise Module for Basesystem 15 SP6< 60.2-150000.3.18.1
Redhat7 products
  • icu< 0:74.2-5.el10_0 | < 0:67.1-10.el9_6 | < 0:67.1-10.el9_2 | < 0:67.1-10.el9_4 | < 0:67.1-10.el9_0
  • icu-debuginfo< 0:74.2-5.el10_0 | < 0:67.1-10.el9_6 | < 0:67.1-10.el9_2 | < 0:67.1-10.el9_4 | < 0:67.1-10.el9_0
  • icu-debugsource< 0:74.2-5.el10_0 | < 0:67.1-10.el9_6 | < 0:67.1-10.el9_2 | < 0:67.1-10.el9_4 | < 0:67.1-10.el9_0
  • libicu< 0:74.2-5.el10_0 | < 0:67.1-10.el9_6 | < 0:67.1-10.el9_2 | < 0:67.1-10.el9_4 | < 0:67.1-10.el9_0
  • libicu-debuginfo< 0:74.2-5.el10_0 | < 0:67.1-10.el9_6 | < 0:67.1-10.el9_2 | < 0:67.1-10.el9_4 | < 0:67.1-10.el9_0
Alpine1 product
  • icu< 74.1-r1 | < 74.2-r1 | < 76.1-r1
Debian1 product
  • icu< 67.1-7+deb11u1 | < 72.1-3+deb12u1 | < 76.1-4
Mageia1 product
  • icu< 73.2-1.2.mga9
Opensuse1 product
  • icu&distro=openSUSE Tumbleweed< 77.1-3.1
Ubuntu1 product
  • icuAll versions (No fix recorded)
Unicode1 product

8 vendors · 27 products

References

37 links
Show all 37 references