CVE-2023-42824

CRITICALNVD 7.89.0▲
EchelonGraph scoreHIGH confidence

Score elevated to 9.0 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2023-10-05), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 7.8 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: 1%CVSS: 7.8Exploit: cisa kev · ssvc active · public exploitExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

The issue was addressed with improved checks. This issue is fixed in iOS 16.7.1 and iPadOS 16.7.1. A local attacker may be able to elevate their privileges. Apple is aware of a report that this issue may have been actively exploited against versions of iOS before iOS 16.6.

CVSS v3
7.8
EG Score
9.0(high)
EG Risk
81(Attend)
EG Risk 81/100SSVC: Attend

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%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
1%
EPSS %ILE
58%
KEV
⚠ Exploited

Published

October 4, 2023

Last Modified

June 17, 2026

Advisory Details (4)

Auto-updated Jun 3, 2026
⚠️ Active exploitation confirmed. Patch available. Sources: cisa.
cisa Patch Available🔴 Active Exploitation

Known Exploited Vulnerabilities Catalog | CISA

Known Exploited Vulnerabilities Catalog | CISA. Listed in CISA Known Exploited Vulnerabilities catalog.

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-42824
generic🔴 Active Exploitation

About the security content of iOS 16.7.1 and iPadOS 16.7.1 - Apple Support

https://support.apple.com/kb/HT213972
generic🔴 Active Exploitation

About the security content of iOS 17.0.3 and iPadOS 17.0.3 - Apple Support

https://support.apple.com/kb/HT213961
generic🔴 Active Exploitation

About the security content of iOS 16.7.1 and iPadOS 16.7.1 - Apple Support

https://support.apple.com/en-us/HT213972

Data Freshness Timeline

(refreshed 58× in last 7d / 238× 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 585 total refreshes for this CVE.

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

Publicly available exploits

(1 reference)

Working exploit code is in the public domain (1 GitHub PoC). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • GitHub PoC619555798/cve-2023-42824
    First seen Feb 14, 2026

    cow bypass

    Open source ↗

Frequently asked(6)

What is CVE-2023-42824?
CVE-2023-42824 is a critical vulnerability published on October 4, 2023. The issue was addressed with improved checks. This issue is fixed in iOS 16.7.1 and iPadOS 16.7.1. A local attacker may be able to elevate their privileges. Apple is aware of a report that this issue may have been actively exploited against versions of iOS before iOS 16.6.
When was CVE-2023-42824 disclosed?
CVE-2023-42824 was first published in the National Vulnerability Database on October 4, 2023, with the most recent update on June 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2023-42824 actively exploited?
Yes. CISA added CVE-2023-42824 to the Known Exploited Vulnerabilities catalog on October 5, 2023, affecting Apple iOS and iPadOS. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.
What is the CVSS score of CVE-2023-42824?
CVE-2023-42824 has a CVSS v3 base score of 7.8 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.0.
Which products are affected by CVE-2023-42824?
CVE-2023-42824 affects Apple iOS and iPadOS. The full affected-products list, including version ranges and fixed versions, is shown in the Affected Packages section of this page.
How do I remediate CVE-2023-42824?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-42824, 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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