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
44%
KEV
Not listed

Published

May 6, 2025

Last Modified

September 7, 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 (2.82.1-0ubuntu1.1) @ oracular2026-09-07ubuntu
redhatglib2-0:2.56.4-10.el8_4.22025-09-02redhat
redhatglib2-0:2.56.4-8.el8_2.22025-09-02redhat
redhatglib2-0:2.56.4-158.el8_6.22025-09-02redhat
redhatglib2-0:2.56.4-162.el8_82025-09-02redhat
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 / 53× 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 260 total refreshes for this CVE.

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

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 September 7, 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 56.3% 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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