CVE-2025-43535

MEDIUMNVD 4.34.3—
EchelonGraph scoreMEDIUM confidence

Score 4.3 from GitHub Security Advisory published 2025-12-17. NVD baseline CVSS 4.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
4.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 4.3Exploit: None knownExposed: 0

A fix is available — apply it.

The issue was addressed with improved memory handling. This issue is fixed in Safari 26.2, iOS 18.7.3 and iPadOS 18.7.3, iOS 26.2 and iPadOS 26.2, macOS Tahoe 26.2, visionOS 26.2. Processing maliciously crafted web content may lead to an unexpected process crash.

CVSS v3
4.3
EG Score
4.3(medium)
EG Risk
20(Track)
EG Risk 20/100SSVC: 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
Severity43% × 45%
Exploitation1% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
57%
KEV
Not listed

Published

December 17, 2025

Last Modified

December 18, 2025

References (5)

Patch Availability(12)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntuwebkit2gtk-driver (2.50.4-0ubuntu0.24.04.1) @ noble2026-05-29ubuntu
redhatwebkit2gtk3-0:2.50.4-1.el8_82025-12-24redhat
redhatwebkitgtk4-0:2.50.4-2.el7_92025-12-24redhat
redhatwebkit2gtk3-0:2.50.4-1.el8_22025-12-24redhat
redhatwebkit2gtk3-0:2.50.4-1.el8_42025-12-24redhat
redhatwebkit2gtk3-0:2.50.4-1.el9_02025-12-24redhat
redhatwebkit2gtk3-0:2.50.4-1.el9_22025-12-24redhat
redhatwebkit2gtk3-0:2.50.4-1.el8_62025-12-24redhat
redhatwebkit2gtk3-0:2.50.4-1.el9_42025-12-24redhat
redhatwebkit2gtk3-0:2.50.4-1.el9_62025-12-24redhat
redhatwebkit2gtk3-0:2.50.4-1.el9_72025-12-18redhat
redhatwebkit2gtk3-0:2.50.4-1.el8_102025-12-18redhat

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

(8 across 4 ecosystems)
Debian:11(2)
PackageVulnerable rangeFixed inDependents
webkit2gtk2.32.3-1 ... 2.50.3-1~deb13u1 (214 versions)2.50.4-1~deb11u1—
wpewebkit2.32.3-2 ... 2.52.5-1 (90 versions)——
Debian:12(2)
PackageVulnerable rangeFixed inDependents
webkit2gtk2.40.1-1 ... 2.50.4-1~deb11u1 (130 versions)2.50.4-1~deb12u1—
wpewebkit2.38.6-1 ... 2.52.6-1 (54 versions)——
Debian:13(2)
PackageVulnerable rangeFixed inDependents
webkit2gtk2.48.3-1 ... 2.50.4-1~deb12u1 (24 versions)2.50.4-1~deb13u1—
wpewebkit2.48.3-1 ... 2.52.6-1 (20 versions)——
Debian:14(2)
PackageVulnerable rangeFixed inDependents
webkit2gtk2.48.3-1 ... 2.50.4-1~deb13u1 (25 versions)2.50.4-1—
wpewebkit2.48.3-1 ... 2.50.3-1 (9 versions)2.50.4-1—

All Vendor Advisories

(12)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 6× in last 7d / 29× 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 162 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. 2026-09-14 07:49 UTCOSV refresh
  7. 2026-09-12 15:00 UTCEPSS rescore
  8. 2026-09-11 14:52 UTCEPSS rescore
  9. 2026-09-11 09:36 UTCEPSS rescore
  10. 2026-09-10 09:34 UTCEPSS rescore
  11. 2026-09-08 21:59 UTCEPSS rescore
  12. 2026-09-07 16:00 UTCEPSS rescore
  13. 2026-09-07 16:00 UTCEPSS rescore
  14. 2026-09-06 13:46 UTCEPSS rescore
  15. 2026-09-05 15:28 UTCEPSS rescore
  16. 2026-09-04 05:06 UTCEPSS rescore
  17. 2026-09-02 14:11 UTCEPSS rescore
  18. 2026-09-01 13:53 UTCEPSS rescore
  19. 2026-09-01 04:38 UTCEPSS rescore
  20. 2026-08-30 19:16 UTCEPSS rescore
  21. 2026-08-30 01:21 UTCEPSS rescore
  22. 2026-08-28 21:40 UTCEPSS rescore
  23. 2026-08-27 14:24 UTCEPSS rescore
  24. 2026-08-26 14:45 UTCEPSS rescore
  25. 2026-08-26 08:43 UTCOSV refresh
Show 75 more
  1. 2026-08-25 13:48 UTCEPSS rescore
  2. 2026-08-24 14:16 UTCEPSS rescore
  3. 2026-08-24 09:22 UTCEPSS rescore
  4. 2026-08-23 00:18 UTCEPSS rescore
  5. 2026-08-21 23:48 UTCEPSS rescore
  6. 2026-08-20 22:54 UTCEPSS rescore
  7. 2026-08-19 17:03 UTCEPSS rescore
  8. 2026-08-18 13:47 UTCEPSS rescore
  9. 2026-08-17 13:46 UTCEPSS rescore
  10. 2026-08-16 14:55 UTCEPSS rescore
  11. 2026-08-16 02:13 UTCEPSS rescore
  12. 2026-08-15 01:29 UTCEPSS rescore
  13. 2026-08-13 21:59 UTCEPSS rescore
  14. 2026-08-12 13:50 UTCEPSS rescore
  15. 2026-08-11 13:41 UTCEPSS rescore
  16. 2026-08-10 23:59 UTCEPSS rescore
  17. 2026-08-09 23:27 UTCEG score recompute
  18. 2026-08-09 23:27 UTCVendor advisory
  19. 2026-08-09 23:27 UTCGHSA enrichment
  20. 2026-08-09 13:46 UTCEPSS rescore
  21. 2026-08-08 16:36 UTCEPSS rescore
  22. 2026-08-08 06:14 UTCEG score recompute
  23. 2026-08-08 06:14 UTCVendor advisory
  24. 2026-08-08 06:14 UTCGHSA enrichment
  25. 2026-08-06 13:46 UTCEPSS rescore
  26. 2026-08-06 07:57 UTCEG score recompute
  27. 2026-08-06 07:57 UTCVendor advisory
  28. 2026-08-06 07:57 UTCGHSA enrichment
  29. 2026-08-05 19:16 UTCEPSS rescore
  30. 2026-08-04 15:09 UTCEPSS rescore
  31. 2026-08-04 10:37 UTCEPSS rescore
  32. 2026-08-03 10:35 UTCEPSS rescore
  33. 2026-08-02 02:26 UTCEPSS rescore
  34. 2026-08-01 04:15 UTCEPSS rescore
  35. 2026-07-30 16:27 UTCEPSS rescore
  36. 2026-07-30 01:30 UTCEPSS rescore
  37. 2026-07-30 01:30 UTCEPSS rescore
  38. 2026-07-28 15:35 UTCEPSS rescore
  39. 2026-07-26 14:54 UTCEPSS rescore
  40. 2026-07-25 14:17 UTCEPSS rescore
  41. 2026-07-25 14:17 UTCEPSS rescore
  42. 2026-07-24 14:17 UTCEPSS rescore
  43. 2026-07-23 14:18 UTCEPSS rescore
  44. 2026-07-23 12:19 UTCOSV refresh
  45. 2026-07-23 02:56 UTCEG score recompute
  46. 2026-07-22 14:07 UTCEPSS rescore
  47. 2026-07-22 14:07 UTCEPSS rescore
  48. 2026-07-21 15:24 UTCEPSS rescore
  49. 2026-07-20 17:07 UTCEPSS rescore
  50. 2026-07-19 14:30 UTCEPSS rescore
  51. 2026-07-19 14:30 UTCEPSS rescore
  52. 2026-07-19 02:28 UTCEPSS rescore
  53. 2026-07-19 02:28 UTCEPSS rescore
  54. 2026-07-18 10:04 UTCEPSS rescore
  55. 2026-07-16 17:02 UTCEPSS rescore
  56. 2026-07-16 17:02 UTCEPSS rescore
  57. 2026-07-15 16:57 UTCEPSS rescore
  58. 2026-07-15 16:57 UTCEPSS rescore
  59. 2026-07-15 01:59 UTCEPSS rescore
  60. 2026-07-15 01:59 UTCEPSS rescore
  61. 2026-07-13 22:29 UTCEPSS rescore
  62. 2026-07-13 22:29 UTCEPSS rescore
  63. 2026-07-13 06:12 UTCEPSS rescore
  64. 2026-07-12 05:46 UTCEPSS rescore
  65. 2026-07-11 08:27 UTCEPSS rescore
  66. 2026-07-11 08:27 UTCEPSS rescore
  67. 2026-07-09 19:09 UTCEPSS rescore
  68. 2026-07-09 19:09 UTCEPSS rescore
  69. 2026-07-08 15:15 UTCEPSS rescore
  70. 2026-07-07 13:45 UTCEPSS rescore
  71. 2026-07-06 16:27 UTCEPSS rescore
  72. 2026-07-06 16:27 UTCEPSS rescore
  73. 2026-07-06 07:32 UTCOSV refresh
  74. 2026-07-06 02:23 UTCEPSS rescore
  75. 2026-07-06 02:23 UTCEPSS rescore

Related CVEs(same vendor)

Frequently asked(5)

What is CVE-2025-43535?
CVE-2025-43535 is a medium vulnerability published on December 17, 2025. The issue was addressed with improved memory handling. This issue is fixed in Safari 26.2, iOS 18.7.3 and iPadOS 18.7.3, iOS 26.2 and iPadOS 26.2, macOS Tahoe 26.2, visionOS 26.2. Processing maliciously crafted web content may lead to an unexpected process crash.
When was CVE-2025-43535 disclosed?
CVE-2025-43535 was first published in the National Vulnerability Database on December 17, 2025, with the most recent update on December 18, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2025-43535 actively exploited?
CVE-2025-43535 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 43.4% of all scored CVEs.
What is the CVSS score of CVE-2025-43535?
CVE-2025-43535 has a CVSS v3 base score of 4.3 (NVD).
How do I remediate CVE-2025-43535?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-43535, 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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