CVE-2023-32366

HIGHNVD 7.87.8—
EchelonGraph scoreMEDIUM confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2024-01-11. NVD baseline CVSS 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
7.8EG
EchelonGraph verdictPlan mitigationSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS: 7.8Exploit: None knownExposed services: Not assessed

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

An out-of-bounds write issue was addressed with improved input validation. This issue is fixed in macOS Big Sur 11.7.5, macOS Ventura 13.3, iOS 16.4 and iPadOS 16.4, iOS 15.7.4 and iPadOS 15.7.4, macOS Monterey 12.6.4. Processing a font file may lead to arbitrary code execution.

CVSS v3
7.8
EG Score
7.8HIGHmedium confidence
EG Risk
35
EG Risk 35/100CISA 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
Severity78% × 45%
Exploitation0% × 40%
Automatability0% × 15%
CISA SSVC: Track at low or medium mission impact; Track* at high (mission-essential systems).
Action: No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.
EPSS PROB
0.2%
EPSS %ILE
10th
KEV
Not listed

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

No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (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

January 10, 2024

Last Modified

November 21, 2024

References (10)

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 7× 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 183 total refreshes for this CVE.

  1. 2026-10-09 20:05 UTCEPSS rescore
  2. 2026-10-08 17:06 UTCEPSS rescore
  3. 2026-10-07 23:46 UTCEPSS rescore
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  8. 2026-09-30 16:23 UTCEG score recompute
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  11. 2026-09-28 13:49 UTCEPSS rescore
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  1. 2026-09-07 15:59 UTCEPSS rescore
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  24. 2026-08-13 21:58 UTCEPSS rescore
  25. 2026-08-12 13:48 UTCEPSS rescore
  26. 2026-08-11 13:39 UTCEPSS rescore
  27. 2026-08-09 13:44 UTCEPSS rescore
  28. 2026-08-08 16:34 UTCEPSS rescore
  29. 2026-08-07 16:24 UTCEPSS rescore
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  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 02:22 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
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  57. 2026-07-19 02:27 UTCEPSS rescore
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  61. 2026-07-16 17:01 UTCEPSS rescore
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  66. 2026-07-13 22:28 UTCEPSS rescore
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  73. 2026-07-09 19:08 UTCEPSS rescore
  74. 2026-07-09 19:08 UTCEPSS rescore
  75. 2026-07-08 15:13 UTCEPSS rescore

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Frequently asked(5)

What is CVE-2023-32366?
CVE-2023-32366 is a high vulnerability published on January 10, 2024. An out-of-bounds write issue was addressed with improved input validation. This issue is fixed in macOS Big Sur 11.7.5, macOS Ventura 13.3, iOS 16.4 and iPadOS 16.4, iOS 15.7.4 and iPadOS 15.7.4, macOS Monterey 12.6.4. Processing a font file may lead to arbitrary code execution.
When was CVE-2023-32366 disclosed?
CVE-2023-32366 was first published on January 10, 2024, 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-2023-32366 actively exploited?
CVE-2023-32366 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (10th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2023-32366?
CVE-2023-32366 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2023-32366?
No fix for CVE-2023-32366 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix.

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