CVE-2023-40393

HIGHNVD 7.57.5—

7.5

An authentication issue was addressed with improved state management. This issue is fixed in iOS 17 and iPadOS 17, macOS Sonoma 14. Photos in the Hidden Photos Album may be viewed without authentication.

CVSS v3: 7.5
EG Score: 7.5(medium)
EPSS: 50.4%
KEV: Not listed

Published

January 10, 2024

Last Modified

November 4, 2025

References (4)

product-security@applehttps://support.apple.com/en-us/120949
product-security@applehttps://support.apple.com/en-us/120950
af854a3a-2127-422b-91ae-364da2661108https://support.apple.com/en-us/HT213940
af854a3a-2127-422b-91ae-364da2661108https://support.apple.com/kb/HT213940

Weakness Classification(1)

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

CWE-306Missing Authentication for Critical Function

Data Freshness Timeline

(refreshed 12× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-04 13:11 UTCepss_batch
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2026-05-26 07:18 UTCepss_batch
2026-05-26 07:18 UTCepss_batch

Frequently asked(5)

What is CVE-2023-40393?

CVE-2023-40393 is a high vulnerability published on January 10, 2024. An authentication issue was addressed with improved state management. This issue is fixed in iOS 17 and iPadOS 17, macOS Sonoma 14. Photos in the Hidden Photos Album may be viewed without authentication.

When was CVE-2023-40393 disclosed?

CVE-2023-40393 was first published in the National Vulnerability Database on January 10, 2024, with the most recent update on November 4, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2023-40393 actively exploited?

CVE-2023-40393 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 50.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2023-40393?

CVE-2023-40393 has a CVSS v3 base score of 7.5 (NVD).

How do I remediate CVE-2023-40393?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-40393, 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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CVE-2023-40393

📅 Published

🔄 Last Modified

🔗 References (4)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2023-40393?

🔗 Related CVEs(same CWE)

Same CWE

Published

Last Modified

References (4)

Frequently asked(5)

Related CVEs(same CWE)