CVE-2023-36495

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2023-07-28. NVD baseline CVSS 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 9.8Exploit: None knownExposed: 0

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

An integer overflow was addressed with improved input validation. This issue is fixed in watchOS 9.6, macOS Monterey 12.6.8, iOS 15.7.8 and iPadOS 15.7.8, tvOS 16.6, iOS 16.6 and iPadOS 16.6, macOS Ventura 13.5. An app may be able to execute arbitrary code with kernel privileges.

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
60(Track)
EG Risk 60/100SSVC: 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
Severity98% × 45%
Exploitation1% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
66%
KEV
Not listed

Published

July 28, 2023

Last Modified

November 21, 2024

Advisory Details (10)

Auto-updated Jun 21, 2026
⚠️ Active exploitation confirmed. No patch confirmed yet.
generic🔴 Active Exploitation

About the security content of macOS Monterey 12.6.8 - Apple Support

https://support.apple.com/kb/HT213844
generic🔴 Active Exploitation

About the security content of macOS Ventura 13.5 - Apple Support

https://support.apple.com/kb/HT213843
generic🔴 Active Exploitation

About the security content of iOS 15.7.8 and iPadOS 15.7.8 - Apple Support

https://support.apple.com/kb/HT213842
generic🔴 Active Exploitation

About the security content of iOS 16.6 and iPadOS 16.6 - Apple Support

https://support.apple.com/kb/HT213841
generic🔴 Active Exploitation

About the security content of watchOS 9.6 - Apple Support

https://support.apple.com/en-us/HT213848
generic🔴 Active Exploitation

About the security content of tvOS 16.6 - Apple Support

https://support.apple.com/en-us/HT213846
generic🔴 Active Exploitation

About the security content of macOS Monterey 12.6.8 - Apple Support

https://support.apple.com/en-us/HT213844
generic🔴 Active Exploitation

About the security content of macOS Ventura 13.5 - Apple Support

https://support.apple.com/en-us/HT213843
generic🔴 Active Exploitation

About the security content of iOS 15.7.8 and iPadOS 15.7.8 - Apple Support

https://support.apple.com/en-us/HT213842
generic🔴 Active Exploitation

About the security content of iOS 16.6 and iPadOS 16.6 - Apple Support

https://support.apple.com/en-us/HT213841

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 11× in last 7d / 49× 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 116 total refreshes for this CVE.

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

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Frequently asked(5)

What is CVE-2023-36495?
CVE-2023-36495 is a critical vulnerability published on July 28, 2023. An integer overflow was addressed with improved input validation. This issue is fixed in watchOS 9.6, macOS Monterey 12.6.8, iOS 15.7.8 and iPadOS 15.7.8, tvOS 16.6, iOS 16.6 and iPadOS 16.6, macOS Ventura 13.5. An app may be able to execute arbitrary code with kernel privileges.
When was CVE-2023-36495 disclosed?
CVE-2023-36495 was first published in the National Vulnerability Database on July 28, 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-2023-36495 actively exploited?
CVE-2023-36495 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 34.4% of all scored CVEs.
What is the CVSS score of CVE-2023-36495?
CVE-2023-36495 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2023-36495?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-36495, 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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