VulnerabilityPublished 26 Oct 2026

CVE-2026-84599: The issue was addressed with improved memory handling

Source GCVE Database

Authoritative record:CVE-2026-84599

Not known to be exploited : upgrade to 27 or 26.7.2 soon.

Data as of 26 Oct 2026, 22:57 UTC

Severity

High

Rated High by Threat Radar's AI analysis · CVSS not yet scored by NVD

Patch: Available – fixed in 27, 26.7.2, 26.7 +1

Exploitation evidence

Disclosed: evidence found.
CVE published 26 Oct 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponised: Public exploit code exists in Metasploit or Exploit-DB, or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

ghsa-5vgf-vp9r-h5c9

What to do

Upgrade iOS and iPadOS to 27 or 26.7.2; macOS to 27, 26.7 or 15.8; tvOS and visionOS and watchOS to 27.

Affected software

Product	Affected	Fixed in
AppleiOS and iPadOS	Affected <27	Fixed in 27
AppleiOS and iPadOS	Affected <26.7.2	Fixed in 26.7.2
ApplemacOS	Affected <27	Fixed in 27
ApplemacOS	Affected <26.7	Fixed in 26.7
ApplemacOS	Affected <15.8	Fixed in 15.8
AppletvOS	Affected <27	Fixed in 27

AI-suggested

The vulnerability is fixed in iOS 26.7.2, iPadOS 26.7.2, iOS 27, iPadOS 27, macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7, tvOS 27, visionOS 27, and watchOS 27. Users and administrators should update to these versions to remediate the issue.

Description

CVE-2026-84599 is a vulnerability affecting multiple Apple operating systems where improper memory handling could allow an app to cause unexpected system termination or corrupt kernel memory. The issue has been addressed with improved memory handling in several Apple OS versions including iOS 26.7.2, iPadOS 26.7.2, iOS 27, iPadOS 27, macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7, tvOS 27, visionOS 27, and watchOS 27.

Impact

An application exploiting this vulnerability could cause the affected system to terminate unexpectedly or corrupt kernel memory, potentially leading to system instability or crashes. There is no indication of active exploitation in the wild.

Summary

This vulnerability involves a flaw in memory handling that could be exploited by an application to cause unexpected system termination or kernel memory corruption on affected Apple operating systems. The issue is fixed in the specified versions of iOS, iPadOS, macOS, tvOS, visionOS, and watchOS by improved memory management techniques.

References

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