CVE-2023-32393

HIGHNVD 8.88.8—
EchelonGraph scoreMEDIUM confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2023-07-27. NVD baseline CVSS 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
8.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1.0%CVSS: 8.8Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

The issue was addressed with improved memory handling. This issue is fixed in watchOS 9.3, tvOS 16.3, macOS Ventura 13.2, iOS 16.3 and iPadOS 16.3. Processing web content may lead to arbitrary code execution.

CVSS v3
8.8
EG Score
8.8HIGHmedium confidence
EG Risk
44
EG Risk 44/100CISA SSVC

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
Severity88% × 45%
Exploitation1% × 40%
Automatability30% × 15%
CISA SSVC: Track at low or medium mission impact; Track or Attend at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
1.0%
EPSS %ILE
59th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track or Attend at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation none (no KEV listing, exploit record or EPSS ≥ 50%) · Automatable unknown (not published for this CVE) · Technical impact partial (CVSS below 9.0). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

July 27, 2023

Last Modified

November 21, 2024

Advisory Details (5)

Auto-updated Aug 28, 2026
⚠️ Active exploitation confirmed. Patch available.
generic🔴 Active Exploitation

About the security content of iOS 16.3 and iPadOS 16.3 - Apple Support

https://support.apple.com/en-us/HT213606
generic🔴 Active Exploitation

About the security content of macOS Ventura 13.2 - Apple Support

https://support.apple.com/en-us/HT213605
generic🔴 Active Exploitation

About the security content of tvOS 16.3 - Apple Support

https://support.apple.com/en-us/HT213601
generic🔴 Active Exploitation

About the security content of watchOS 9.3 - Apple Support

https://support.apple.com/en-us/HT213599
generic

WebKitGTK+: Multiple Vulnerabilities (GLSA 202401-04) — Gentoo security

https://security.gentoo.org/glsa/202401-04

Vendor Advisories for CVE-2023-32393(1)

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

Patch Availability(4)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
ubuntulibwebkitgtk-6.0-dev (2.40.4-0ubuntu0.23.04.1) @ lunar2026-05-24ubuntu
redhatwebkitgtk4-0:2.48.3-2.el7_92025-07-07redhat
redhatwebkit2gtk3-0:2.40.5-1.el82023-11-14redhat
redhatwebkit2gtk3-0:2.40.5-1.el92023-11-07redhat

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 rangeFix by version rangeDependents
webkit2gtk2.32.3-1 ... 2.40.0-3 (84 versions)
  • every version up to 2.40.1-1~deb11u1: fixed in 2.40.1-1~deb11u1
—
wpewebkit2.32.3-2 ... 2.52.5-1 (90 versions)
  • every version on: no fix on record
—
Debian:12(2)
PackageVulnerable rangeFix by version rangeDependents
webkit2gtk—
  • every version up to 2.40.0-1: fixed in 2.40.0-1
—
wpewebkit2.38.6-1 ... 2.52.6-1 (54 versions)
  • every version on: no fix on record
—
Debian:13(2)
PackageVulnerable rangeFix by version rangeDependents
webkit2gtk—
  • every version up to 2.40.0-1: fixed in 2.40.0-1
—
wpewebkit—
  • every version up to 2.40.2-2: fixed in 2.40.2-2
—
Debian:14(2)
PackageVulnerable rangeFix by version rangeDependents
webkit2gtk—
  • every version up to 2.40.0-1: fixed in 2.40.0-1
—
wpewebkit—
  • every version up to 2.40.2-2: fixed in 2.40.2-2
—

Additional Vendor Advisories

(3)

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 / 24× 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 187 total refreshes for this CVE.

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

Related CVEs(same product + same vendor)

Frequently asked(5)

What is CVE-2023-32393?
CVE-2023-32393 is a high vulnerability published on July 27, 2023. The issue was addressed with improved memory handling. This issue is fixed in watchOS 9.3, tvOS 16.3, macOS Ventura 13.2, iOS 16.3 and iPadOS 16.3. Processing web content may lead to arbitrary code execution.
When was CVE-2023-32393 disclosed?
CVE-2023-32393 was first published on July 27, 2023, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2023-32393 actively exploited?
CVE-2023-32393 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1.0% probability of exploitation in the next 30 days (59th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2023-32393?
CVE-2023-32393 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2023-32393?
A fix for CVE-2023-32393 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2023-32393 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2023-32393

Explore →

Is Your Infrastructure Affected by CVE-2023-32393?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Book a Demo →Browse All CVEs