CVE-2023-28204

CRITICALNVD 6.59.0▲
EchelonGraph scoreHIGH confidence

Score elevated to 9.0 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2023-05-22), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 6.5 retained for reference. Confidence: HIGH.

Triggered by: CISA KEV (actively exploited)
Sources: cisa_kev, epss, ghsa, nvd
Trending — 4 sources updated this weekExploited in the wild
9.0EG
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS PROB: 14%CVSS: 6.5Exploit: cisa kev · ssvc active · epss top5pctExposed services: Not assessed

A fix is available — apply it.

An out-of-bounds read was addressed with improved input validation. This issue is fixed in watchOS 9.5, tvOS 16.5, macOS Ventura 13.4, iOS 15.7.6 and iPadOS 15.7.6, Safari 16.5, iOS 16.5 and iPadOS 16.5. Processing web content may disclose sensitive information. Apple is aware of a report that this issue may have been actively exploited.

CVSS v3
6.5
EG Score
9.0CRITICALhigh confidence
EG Risk
81
EG Risk 81/100CISA 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
Severity90% × 45%
Exploitation100% × 40%
Automatability0% × 15%
CISA SSVC: Track at low or medium mission impact; 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
14%
EPSS %ILE
96th
KEV
⚠ Exploited

CISA SSVCTrack at low or medium mission impact; 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 active (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). 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

June 23, 2023

Last Modified

October 23, 2025

Advisory Details (7)

Auto-updated Jun 12, 2026
⚠️ Active exploitation confirmed. Patch available.
generic🔴 Active Exploitation

About the security content of macOS Ventura 13.4 - Apple Support

https://support.apple.com/en-us/HT213758
generic🔴 Active Exploitation

About the security content of iOS 16.5 and iPadOS 16.5 - Apple Support

https://support.apple.com/en-us/HT213757
generic

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

https://security.gentoo.org/glsa/202401-04
generic🔴 Active Exploitation

About the security content of iOS 15.7.6 and iPadOS 15.7.6 - Apple Support

https://support.apple.com/en-us/HT213765
generic🔴 Active Exploitation

About the security content of watchOS 9.5 - Apple Support

https://support.apple.com/en-us/HT213764
generic🔴 Active Exploitation

About the security content of Safari 16.5 - Apple Support

https://support.apple.com/en-us/HT213762
generic🔴 Active Exploitation

About the security content of tvOS 16.5 - Apple Support

https://support.apple.com/en-us/HT213761

Vendor Advisories for CVE-2023-28204(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 (2.40.4-0ubuntu0.22.04.1) @ jammy2026-10-05ubuntu
redhatwebkitgtk4-0:2.48.3-2.el7_92025-07-07redhat
redhatwebkit2gtk3-0:2.38.5-1.el8_8.42023-06-05redhat
redhatwebkit2gtk3-0:2.38.5-1.el9_2.22023-06-05redhat

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 ... 2.40.1-1~deb11u1 (86 versions)
  • every version up to 2.40.2-1~deb11u1: fixed in 2.40.2-1~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
webkit2gtk2.40.1-1, 2.40.2-1~deb11u1
  • every version up to 2.40.2-1~deb12u1: fixed in 2.40.2-1~deb12u1
—
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 2.40.2-1: fixed in 2.40.2-1
—
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 2.40.2-1: fixed in 2.40.2-1
—
wpewebkit—
  • every version up to 2.40.2-2: fixed in 2.40.2-2
—

Weakness Classification(1)

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

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 100× in last 7d / 436× 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 1,830 total refreshes for this CVE.

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

Related CVEs(same product + same vendor + same CWE)

Frequently asked(6)

What is CVE-2023-28204?
CVE-2023-28204 is a critical vulnerability published on June 23, 2023. An out-of-bounds read was addressed with improved input validation. This issue is fixed in watchOS 9.5, tvOS 16.5, macOS Ventura 13.4, iOS 15.7.6 and iPadOS 15.7.6, Safari 16.5, iOS 16.5 and iPadOS 16.5. Processing web content may disclose sensitive information. Apple is aware of a report that this…
When was CVE-2023-28204 disclosed?
CVE-2023-28204 was first published on June 23, 2023, with the most recent update on October 23, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2023-28204 actively exploited?
Yes. CISA added CVE-2023-28204 to the Known Exploited Vulnerabilities catalog on May 22, 2023, affecting Apple Multiple Products. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate attention. A fix is available. Apply it.
What is the CVSS score of CVE-2023-28204?
CVE-2023-28204 has a CVSS v3 base score of 6.5 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.0 (CRITICAL).
Which products are affected by CVE-2023-28204?
CVE-2023-28204 affects Apple Multiple Products. The affected packages EchelonGraph has on record, with version ranges, are listed in the Affected Packages section of this page.
How do I remediate CVE-2023-28204?
A fix for CVE-2023-28204 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2023-28204 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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