CVE-2026-20605

MEDIUMNVD 4.64.6—

4.6

The issue was addressed with improved memory handling. This issue is fixed in iOS 18.7.5 and iPadOS 18.7.5, macOS Sequoia 15.7.4, macOS Sonoma 14.8.4, macOS Tahoe 26.3. An app may be able to crash a system process.

CVSS v3: 4.6
EG Score: 4.6(medium)
EPSS: 0.9%
KEV: Not listed

Published

February 11, 2026

Last Modified

April 2, 2026

References (4)

product-security@applehttps://support.apple.com/en-us/126347
product-security@applehttps://support.apple.com/en-us/126348
product-security@applehttps://support.apple.com/en-us/126349
product-security@applehttps://support.apple.com/en-us/126350

Weakness Classification(1)

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

CWE-119Buffer Operations Within Bounds (Buffer Overflow)

Data Freshness Timeline

(refreshed 18× 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.

2026-05-31 22:30 UTCepss_batch
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2026-05-22 21:16 UTCepss_batch
2026-05-21 22:43 UTCepss_batch

Frequently asked(5)

What is CVE-2026-20605?

CVE-2026-20605 is a medium vulnerability published on February 11, 2026. The issue was addressed with improved memory handling. This issue is fixed in iOS 18.7.5 and iPadOS 18.7.5, macOS Sequoia 15.7.4, macOS Sonoma 14.8.4, macOS Tahoe 26.3. An app may be able to crash a system process.

When was CVE-2026-20605 disclosed?

CVE-2026-20605 was first published in the National Vulnerability Database on February 11, 2026, with the most recent update on April 2, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2026-20605 actively exploited?

CVE-2026-20605 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2026-20605?

CVE-2026-20605 has a CVSS v3 base score of 4.6 (NVD).

How do I remediate CVE-2026-20605?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-20605, 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-2026-20605

📅 Published

🔄 Last Modified

🔗 References (4)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2026-20605?

🔗 Related CVEs(same CWE)

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Published

Last Modified

References (4)

Frequently asked(5)

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