CVE-2021-30752

HIGHNVD 7.87.8—

7.8

Processing a maliciously crafted image may lead to arbitrary code execution. This issue is fixed in macOS Big Sur 11.3, iOS 14.5 and iPadOS 14.5, watchOS 7.4, tvOS 14.5. An out-of-bounds read was addressed with improved input validation.

CVSS v3: 7.8
EG Score: 7.8(medium)
EPSS: 61.4%
KEV: Not listed

Published

September 8, 2021

Last Modified

November 21, 2024

References (8)

product-security@applehttps://support.apple.com/en-us/HT212317
product-security@applehttps://support.apple.com/en-us/HT212323
product-security@applehttps://support.apple.com/en-us/HT212324
product-security@applehttps://support.apple.com/en-us/HT212325
af854a3a-2127-422b-91ae-364da2661108https://support.apple.com/en-us/HT212317
af854a3a-2127-422b-91ae-364da2661108https://support.apple.com/en-us/HT212323
af854a3a-2127-422b-91ae-364da2661108https://support.apple.com/en-us/HT212324
af854a3a-2127-422b-91ae-364da2661108https://support.apple.com/en-us/HT212325

Weakness Classification(1)

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

CWE-125Out-of-bounds Read

Data Freshness Timeline

(refreshed 16× 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.

2026-06-06 13:46 UTCepss_batch
2026-06-06 13:46 UTCepss_batch
2026-06-06 13:46 UTCepss_batch
2026-06-05 22:45 UTCepss_batch
2026-06-05 22:45 UTCepss_batch
2026-06-05 06:09 UTCepss_batch
2026-06-05 06:09 UTCepss_batch
2026-06-04 13:10 UTCepss_batch
2026-06-04 13:10 UTCepss_batch
2026-06-02 20:11 UTCepss_batch
2026-06-02 20:11 UTCepss_batch
2026-06-02 20:11 UTCepss_batch
2026-06-01 13:50 UTCepss_batch
2026-06-01 13:50 UTCepss_batch
2026-05-31 22:29 UTCepss_batch
2026-05-31 22:29 UTCepss_batch
2026-05-31 00:15 UTCepss_batch
2026-05-29 13:42 UTCepss_batch
2026-05-28 13:43 UTCepss_batch
2026-05-28 13:43 UTCepss_batch

Frequently asked(5)

What is CVE-2021-30752?

CVE-2021-30752 is a high vulnerability published on September 8, 2021. Processing a maliciously crafted image may lead to arbitrary code execution. This issue is fixed in macOS Big Sur 11.3, iOS 14.5 and iPadOS 14.5, watchOS 7.4, tvOS 14.5. An out-of-bounds read was addressed with improved input validation.

When was CVE-2021-30752 disclosed?

CVE-2021-30752 was first published in the National Vulnerability Database on September 8, 2021, 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-2021-30752 actively exploited?

CVE-2021-30752 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 61.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2021-30752?

CVE-2021-30752 has a CVSS v3 base score of 7.8 (NVD).

How do I remediate CVE-2021-30752?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-30752, 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

See which npm, PyPI, Go, and Maven packages are affected by CVE-2021-30752

Explore →

Is Your Infrastructure Affected by CVE-2021-30752?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs

CVE-2021-30752

📅 Published

🔄 Last Modified

🔗 References (8)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2021-30752?

🔗 Related CVEs(same CWE)

Same CWE

Published

Last Modified

References (8)

Frequently asked(5)

Related CVEs(same CWE)