CVE-2023-40441

MEDIUMNVD 6.56.5—

6.5

A resource exhaustion issue was addressed with improved input validation. This issue is fixed in iOS 17 and iPadOS 17, macOS Sonoma 14. Processing web content may lead to a denial-of-service.

CVSS v3: 6.5
EG Score: 6.5(medium)
EPSS: 48.1%
KEV: Not listed

Published

September 27, 2023

Last Modified

November 4, 2025

References (10)

product-security@applehttp://seclists.org/fulldisclosure/2023/Oct/3
product-security@applehttp://seclists.org/fulldisclosure/2023/Oct/8
product-security@applehttps://support.apple.com/en-us/HT213938
product-security@applehttps://support.apple.com/en-us/HT213940
af854a3a-2127-422b-91ae-364da2661108http://seclists.org/fulldisclosure/2023/Oct/3
af854a3a-2127-422b-91ae-364da2661108http://seclists.org/fulldisclosure/2023/Oct/8
af854a3a-2127-422b-91ae-364da2661108https://support.apple.com/en-us/HT213938
af854a3a-2127-422b-91ae-364da2661108https://support.apple.com/en-us/HT213940
af854a3a-2127-422b-91ae-364da2661108https://support.apple.com/kb/HT213938
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-400Uncontrolled Resource Consumption (Denial of Service)

Data Freshness Timeline

(refreshed 15× 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.

2026-06-05 22:46 UTCepss_batch
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2026-06-05 06:09 UTCepss_batch
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2026-06-01 13:51 UTCepss_batch
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2026-05-31 22:30 UTCepss_batch
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2026-05-27 13:39 UTCepss_batch

Frequently asked(5)

What is CVE-2023-40441?

CVE-2023-40441 is a medium vulnerability published on September 27, 2023. A resource exhaustion issue was addressed with improved input validation. This issue is fixed in iOS 17 and iPadOS 17, macOS Sonoma 14. Processing web content may lead to a denial-of-service.

When was CVE-2023-40441 disclosed?

CVE-2023-40441 was first published in the National Vulnerability Database on September 27, 2023, 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-2023-40441 actively exploited?

CVE-2023-40441 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 48.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2023-40441?

CVE-2023-40441 has a CVSS v3 base score of 6.5 (NVD).

How do I remediate CVE-2023-40441?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-40441, 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-2023-40441

📅 Published

🔄 Last Modified

🔗 References (10)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2023-40441?

🔗 Related CVEs(same CWE)

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Published

Last Modified

References (10)

Frequently asked(5)

Related CVEs(same CWE)