CVE-2025-5222

HIGHPre-NVD 7.07.0—
EchelonGraph scoreMEDIUM confidence

Score 7.0 from GitHub Security Advisory (severity: HIGH) published 2025-05-27. a secondary CVSS source baseline 7.0; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this weekElevated
7.0EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.0Exploit: Elevated riskExposed: 0

A fix is available — apply 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 v3
7.0
EG Score
7.0(medium)
EG Risk
48(Track)
EG Risk 48/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity70% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
36%
KEV
Not listed

Published

May 27, 2025

Last Modified

September 17, 2026

Advisory Details (9)

Auto-updated Jun 25, 2026
Patch available. Sources: redhat.
generic Patch Available

[SECURITY] [DLA 4217-1] icu security update

https://lists.debian.org/debian-lts-announce/2025/06/msg00015.html
generic

Jira

https://unicode-org.atlassian.net/jira/software/c/projects/ICU/issues/ICU-22957
redhat Patch Available

2368600 – (CVE-2025-5222) CVE-2025-5222 icu: Stack buffer overflow in the SRBRoot::addTag function

Affected: Red Hat Enterprise Linux 10

https://bugzilla.redhat.com/show_bug.cgi?id=2368600
redhat Patch Available

cve-details

https://access.redhat.com/security/cve/CVE-2025-5222
redhat Patch Available

Affected: Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions.

https://access.redhat.com/errata/RHSA-2025:12333
redhat Patch Available

Affected: Red Hat Enterprise Linux 9.4 Extended Update Support.

https://access.redhat.com/errata/RHSA-2025:12332
redhat Patch Available

Affected: Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions.

https://access.redhat.com/errata/RHSA-2025:12331
redhat Patch Available

Affected: Red Hat Enterprise Linux 9.

https://access.redhat.com/errata/RHSA-2025:12083
redhat Patch Available

Affected: Red Hat Enterprise Linux 10.

https://access.redhat.com/errata/RHSA-2025:11888

Vendor Advisories for CVE-2025-5222(15)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(12)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatrhcos-417.94.202608250221-02026-09-03redhat
redhatrhcos-415.92.202608180329-02026-08-31redhat
redhatrhcos-414.92.202608172040-02026-08-31redhat
redhatrhcos-416.94.202608150307-02026-08-31redhat
redhatrhcos-4.19.9.6.202608120446-02026-08-19redhat
redhatrhcos-418.94.202608111829-02026-08-19redhat
redhatrhcos-4.20.9.6.202608121719-02026-08-18redhat
redhaticu-0:67.1-10.el9_22025-07-31redhat
redhaticu-0:67.1-10.el9_42025-07-31redhat
redhaticu-0:67.1-10.el9_02025-07-31redhat
redhaticu-0:67.1-10.el9_62025-07-29redhat
redhaticu-0:74.2-5.el10_02025-07-28redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(10 across 10 ecosystems)
Alpine:v3.19(1)
PackageVulnerable rangeFixed inDependents
icu—74.1-r1—
Alpine:v3.20(1)
PackageVulnerable rangeFixed inDependents
icu—74.2-r1—
Alpine:v3.21(1)
PackageVulnerable rangeFixed inDependents
icu—74.2-r1—
Alpine:v3.22(1)
PackageVulnerable rangeFixed inDependents
icu—76.1-r1—
Alpine:v3.23(1)
PackageVulnerable rangeFixed inDependents
icu—76.1-r1—
Alpine:v3.24(1)
PackageVulnerable rangeFixed inDependents
icu—76.1-r1—
Debian:11(1)
PackageVulnerable rangeFixed inDependents
icu67.1-767.1-7+deb11u1—
Debian:12(1)
PackageVulnerable rangeFixed inDependents
icu72.1-372.1-3+deb12u1—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
icu—76.1-4—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
icu—76.1-4—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 12× in last 7d / 49× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 220 total refreshes for this CVE.

  1. 2026-09-18 19:27 UTCEPSS rescore
  2. 2026-09-17 19:30 UTCEPSS rescore
  3. 2026-09-17 19:29 UTCEG score recompute
  4. 2026-09-17 19:29 UTCVendor advisory
  5. 2026-09-17 19:29 UTCGHSA enrichment
  6. 2026-09-17 19:11 UTCEG score recompute
  7. 2026-09-17 19:11 UTCVendor advisory
  8. 2026-09-17 19:11 UTCGHSA enrichment
  9. 2026-09-16 14:07 UTCEPSS rescore
  10. 2026-09-15 03:10 UTCEPSS rescore
  11. 2026-09-13 16:46 UTCEPSS rescore
  12. 2026-09-12 15:00 UTCEPSS rescore
  13. 2026-09-11 14:52 UTCEPSS rescore
  14. 2026-09-11 09:36 UTCEPSS rescore
  15. 2026-09-10 09:34 UTCEPSS rescore
  16. 2026-09-08 22:00 UTCEPSS rescore
  17. 2026-09-07 16:00 UTCEPSS rescore
  18. 2026-09-06 13:47 UTCEPSS rescore
  19. 2026-09-04 05:06 UTCEPSS rescore
  20. 2026-09-03 15:33 UTCEG score recompute
  21. 2026-09-03 15:33 UTCVendor advisory
  22. 2026-09-03 15:32 UTCGHSA enrichment
  23. 2026-09-03 14:36 UTCEG score recompute
  24. 2026-09-03 14:36 UTCVendor advisory
  25. 2026-09-03 14:36 UTCGHSA enrichment
Show 75 more
  1. 2026-09-02 14:11 UTCEPSS rescore
  2. 2026-09-01 13:53 UTCEPSS rescore
  3. 2026-08-31 03:20 UTCEG score recompute
  4. 2026-08-31 03:20 UTCVendor advisory
  5. 2026-08-31 03:20 UTCGHSA enrichment
  6. 2026-08-31 02:34 UTCEG score recompute
  7. 2026-08-31 02:34 UTCVendor advisory
  8. 2026-08-31 02:34 UTCGHSA enrichment
  9. 2026-08-30 19:16 UTCEPSS rescore
  10. 2026-08-30 01:21 UTCEPSS rescore
  11. 2026-08-28 21:40 UTCEPSS rescore
  12. 2026-08-27 14:24 UTCEPSS rescore
  13. 2026-08-26 16:12 UTCEG score recompute
  14. 2026-08-26 16:12 UTCVendor advisory
  15. 2026-08-26 16:12 UTCGHSA enrichment
  16. 2026-08-26 14:45 UTCEPSS rescore
  17. 2026-08-26 06:26 UTCEG score recompute
  18. 2026-08-26 06:26 UTCVendor advisory
  19. 2026-08-26 06:26 UTCGHSA enrichment
  20. 2026-08-25 13:48 UTCEPSS rescore
  21. 2026-08-24 14:16 UTCEPSS rescore
  22. 2026-08-23 00:18 UTCEPSS rescore
  23. 2026-08-21 23:48 UTCEPSS rescore
  24. 2026-08-20 22:55 UTCEPSS rescore
  25. 2026-08-19 18:20 UTCEG score recompute
  26. 2026-08-19 18:20 UTCVendor advisory
  27. 2026-08-19 18:20 UTCGHSA enrichment
  28. 2026-08-19 17:55 UTCEG score recompute
  29. 2026-08-19 17:55 UTCVendor advisory
  30. 2026-08-19 17:55 UTCGHSA enrichment
  31. 2026-08-19 17:03 UTCEPSS rescore
  32. 2026-08-18 15:34 UTCEG score recompute
  33. 2026-08-18 15:34 UTCVendor advisory
  34. 2026-08-18 15:34 UTCGHSA enrichment
  35. 2026-08-18 14:54 UTCEG score recompute
  36. 2026-08-18 14:54 UTCVendor advisory
  37. 2026-08-18 14:54 UTCGHSA enrichment
  38. 2026-08-18 13:47 UTCEPSS rescore
  39. 2026-08-17 13:46 UTCEPSS rescore
  40. 2026-08-16 14:55 UTCEPSS rescore
  41. 2026-08-16 02:13 UTCEPSS rescore
  42. 2026-08-15 01:30 UTCEPSS rescore
  43. 2026-08-15 01:29 UTCEPSS rescore
  44. 2026-08-13 21:59 UTCEPSS rescore
  45. 2026-08-12 13:50 UTCEPSS rescore
  46. 2026-08-12 12:06 UTCOSV refresh
  47. 2026-08-11 13:42 UTCEPSS rescore
  48. 2026-08-10 23:59 UTCEPSS rescore
  49. 2026-08-09 13:46 UTCEPSS rescore
  50. 2026-08-09 13:46 UTCEPSS rescore
  51. 2026-08-08 16:36 UTCEPSS rescore
  52. 2026-08-07 16:26 UTCEPSS rescore
  53. 2026-08-06 13:46 UTCEPSS rescore
  54. 2026-08-05 19:17 UTCEPSS rescore
  55. 2026-08-05 19:17 UTCEPSS rescore
  56. 2026-08-04 15:09 UTCEPSS rescore
  57. 2026-08-04 10:37 UTCEPSS rescore
  58. 2026-08-03 10:35 UTCEPSS rescore
  59. 2026-08-02 02:26 UTCEPSS rescore
  60. 2026-08-01 04:15 UTCEPSS rescore
  61. 2026-07-30 16:27 UTCEPSS rescore
  62. 2026-07-30 01:30 UTCEPSS rescore
  63. 2026-07-28 15:35 UTCEPSS rescore
  64. 2026-07-27 19:25 UTCOSV refresh
  65. 2026-07-27 14:12 UTCEPSS rescore
  66. 2026-07-26 14:54 UTCEPSS rescore
  67. 2026-07-26 14:54 UTCEPSS rescore
  68. 2026-07-25 14:17 UTCEPSS rescore
  69. 2026-07-24 14:17 UTCEPSS rescore
  70. 2026-07-24 14:17 UTCEPSS rescore
  71. 2026-07-23 14:18 UTCEPSS rescore
  72. 2026-07-23 14:18 UTCEPSS rescore
  73. 2026-07-23 02:58 UTCEG score recompute
  74. 2026-07-22 14:08 UTCEPSS rescore
  75. 2026-07-21 15:24 UTCEPSS rescore

Publicly available exploits

(1 reference)

Working exploit code is in the public domain (1 GitHub PoC). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • GitHub PoCberkley4/icu-74-debian
    First seen Jun 25, 2025

    Debian build files for icu 74.2 with a patch to fix CVE-2025-5222

    Open source ↗

Frequently asked(5)

What is CVE-2025-5222?
CVE-2025-5222 is a high vulnerability published on May 27, 2025. 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.
When was CVE-2025-5222 disclosed?
CVE-2025-5222 was first published in the National Vulnerability Database on May 27, 2025, with the most recent update on September 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2025-5222 actively exploited?
CVE-2025-5222 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 63.6% of all scored CVEs.
What is the CVSS score of CVE-2025-5222?
CVE-2025-5222 has a CVSS v3 base score of 7.0 (NVD).
How do I remediate CVE-2025-5222?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-5222, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2025-5222

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