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CVE-2026-86957

No known exploitation. EPSS puts it in the 15th percentile. Fixed versions are out.

CVSS 3.16.5MediumEPSS percentile15th0.2% chance in 30 daysCISA KEVNot listedNo confirmed exploitation
No public exploit knownFix5 products3 fixed builds listed below

Published Updated Sources: CVE.org, NVD

NVD CVE.org

What to do

Find your product and version, then upgrade to the build on the right.

  • Apple iOS and iPadOSAffected: < 26.7Upgrade to: 26.7Affected: < 27Upgrade to: 27Stated by: CVE record
  • Apple macOSAffected: < 15.8Upgrade to: 15.8Affected: < 26.7Upgrade to: 26.7Affected: < 27Upgrade to: 27Stated by: CVE record
  • Apple tvOSAffected: < 27Upgrade to: 27Stated by: CVE record
  • Apple visionOSAffected: < 27Upgrade to: 27Stated by: CVE record
  • Apple watchOSAffected: < 27Upgrade to: 27Stated by: CVE record

Versions as the sources state them. Full version matrix after sign-in

What it is

From the CVE record

An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in iOS 26.7 and iPadOS 26.7, iOS 27 and iPadOS 27, macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7, tvOS 27, visionOS 27, watchOS 27. An attacker in wireless proximity may be able to cause unexpected system termination.

In plain language

No plain-language summary for this CVE yet.

Exploitation

Where each signal puts this CVE on the scale from published to confirmed exploited.

EPSS15th
CISA KEV

Not in the catalog. CISA has not confirmed exploitation.

Public exploits

No public exploit or proof of concept found in the sources we track.

EPSS

0.2% chance of exploitation activity in the next 30 days, which ranks it in the 15th percentile of scored CVEs.

Exploit Prediction Scoring System, FIRST.org. A probability, not a confirmation.

Lifecycle

6 events over 0 days, from the signal feeds we watch.

  1. Publishedweakness classified, att&ck mapped, record updated, record updated, record updated

Affected products

Technical detail

CVSS 3.1 vector

Open in the CVSS calculator

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Scored 6.5 by NVD.

How it is reached

  • Attack Vector AdjacentRequires access to the local network (e.g. same Wi-Fi, Bluetooth)
  • Attack Complexity LowNo special conditions — the attack can be reliably reproduced
  • Privileges Required NoneNo authentication required — anyone can exploit this
  • User Interaction NoneNo user interaction needed — fully automated exploitation

Scope

  • Scope UnchangedImpact is limited to the vulnerable component itself

Impact if exploited

  • Confidentiality NoneNo confidentiality impact
  • Integrity NoneNo integrity impact
  • Availability HighTotal denial of service — the component is completely unavailable

Weaknesses

ATT&CK techniques

Mapped from the weaknesses above (CWE to ATT&CK), not observed in attacks.

Sources

References in the record

And 5 more references. See all after sign-in

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We'll flag the next CVE, public exploit or patch for iOS and iPadOS, not every advisory.