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CVE-2026-20677

Apple iPadOS race condition

9.0 CRITICALEPSS 0.31%
  1. Published11 Feb 2026

Description

A race condition was addressed with improved handling of symbolic links. This issue is fixed in iOS 18.7.5 and iPadOS 18.7.5, iOS 26.3 and iPadOS 26.3, macOS Sequoia 15.7.4, macOS Sonoma 14.8.4, macOS Tahoe 26.3, visionOS 26.3. A shortcut may be able to bypass sandbox restrictions.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityHigh
Privileges requiredNone
User interactionNone
ScopeChanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

Affected products

Apple iPadOS≥ 26.0 < 26.3 · < 18.7.5
Apple iPhone OS≥ 26.0 < 26.3 · < 18.7.5
Apple macOS≥ 26.0 < 26.3 · < 14.8.4
Apple Visionos< 26.3

Remediation

Fixed in
Apple iPadOS≥ 26.3
Apple iPhone OS≥ 26.3
Apple macOS≥ 26.3
Apple Visionos≥ 26.3

References

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Frequently asked

Is CVE-2026-20677 being actively exploited?

CVE-2026-20677 is not in the CISA KEV catalog. Its EPSS exploit probability is 0.31%.

How severe is CVE-2026-20677?

CVE-2026-20677 has a CVSS 3.1 base score of 9.0, rated critical. EPSS estimates a 0.31% probability of exploitation.

Which products are affected by CVE-2026-20677?

Affected products include Apple iPadOS, Apple iPhone OS, Apple macOS, Apple Visionos.

How do I fix CVE-2026-20677?

Upgrade affected software to a fixed version, for example Apple iPadOS 26.3, Apple iPhone OS 26.3, Apple macOS 26.3 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-20677 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.