CVE-2025-4373

MEDIUMPre-NVD 4.84.8—
EchelonGraph scoreMEDIUM confidence

Score 4.8 from GitHub Security Advisory published 2025-05-06. a secondary CVSS source baseline 4.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
4.8EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 4.8Exploit: None knownExposed: 0

A fix is available — apply it.

A flaw was found in GLib, which is vulnerable to an integer overflow in the g_string_insert_unichar() function. When the position at which to insert the character is large, the position will overflow, leading to a buffer underwrite.

CVSS v3
4.8
EG Score
4.8(medium)
EG Risk
22(Track)
EG Risk 22/100SSVC: 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
Severity48% × 45%
Exploitation1% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
43%
KEV
Not listed

Published

May 6, 2025

Last Modified

August 25, 2026

Advisory Details (9)

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

Affected: Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions and Red Hat Enterprise Linux 8.8 Telecommunications Update Serv

https://access.redhat.com/errata/RHSA-2025:14989
redhat Patch Available

Affected: Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support, Red Hat Enterprise Linux 8.6 Update Services for SAP So

https://access.redhat.com/errata/RHSA-2025:14988
redhat Patch Available
https://access.redhat.com/errata/RHSA-2025:13335
redhat Patch Available

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

https://access.redhat.com/errata/RHSA-2025:12275
redhat Patch Available
https://access.redhat.com/errata/RHSA-2025:11662
redhat Patch Available

Affected: Red Hat Enterprise Linux 9.4 Extended Update Support.

https://access.redhat.com/errata/RHSA-2025:11374
redhat Patch Available

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

https://access.redhat.com/errata/RHSA-2025:11373
redhat Patch Available

Affected: Red Hat Enterprise Linux 8.

https://access.redhat.com/errata/RHSA-2025:11327
redhat Patch Available

Affected: Red Hat Enterprise Linux 9.

https://access.redhat.com/errata/RHSA-2025:11140

Vendor Advisories for CVE-2025-4373(13)

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

Patch Availability(13)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulibglib2.0-tests (2.84.1-1ubuntu0.1) @ plucky2026-08-25ubuntu
redhatglib2-0:2.56.4-158.el8_6.22025-09-02redhat
redhatglib2-0:2.56.4-10.el8_4.22025-09-02redhat
redhatglib2-0:2.56.4-162.el8_82025-09-02redhat
redhatglib2-0:2.56.4-8.el8_2.22025-09-02redhat
redhatinsights-proxy/insights-proxy-container-rhel9:1.5.5-17545043432025-08-07redhat
redhatglib2-0:2.68.4-5.el9_0.22025-07-30redhat
redhatrhosdt/jaeger-rhel8-operator:rhosdt-3.6-17532653142025-07-23redhat
redhatglib2-0:2.68.4-7.el9_2.22025-07-17redhat
redhatglib2-0:2.68.4-14.el9_4.32025-07-17redhat
redhatglib2-0:2.56.4-166.el8_102025-07-16redhat
redhatglib2-0:2.68.4-16.el9_6.22025-07-15redhat
redhatglib2-0:2.80.4-4.el10_0.62025-07-14redhat

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

(4 across 4 ecosystems)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
glib2.02.66.8-1 ... 2.66.8-1+deb11u6 (7 versions)2.66.8-1+deb11u7—
Debian:12(1)
PackageVulnerable rangeFixed inDependents
glib2.02.74.6-2 ... 2.74.6-2+deb12u6 (7 versions)2.74.6-2+deb12u7—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
glib2.0—2.84.1-3—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
glib2.0—2.84.1-3—

Weakness Classification(1)

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

Additional Vendor Advisories

(1)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 6× in last 7d / 70× 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 228 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2025-4373?
CVE-2025-4373 is a medium vulnerability published on May 6, 2025. A flaw was found in GLib, which is vulnerable to an integer overflow in the gstringinsert_unichar() function. When the position at which to insert the character is large, the position will overflow, leading to a buffer underwrite.
When was CVE-2025-4373 disclosed?
CVE-2025-4373 was first published in the National Vulnerability Database on May 6, 2025, with the most recent update on August 25, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2025-4373 actively exploited?
CVE-2025-4373 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 57.2% of all scored CVEs.
What is the CVSS score of CVE-2025-4373?
CVE-2025-4373 has a CVSS v3 base score of 4.8 (NVD).
How do I remediate CVE-2025-4373?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-4373, 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

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