VulnSocial

CVE-2026-86900(apple / macos)

LOWCVSS 6.5 · MEDIUM

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

An out-of-bounds read issue was addressed with improved input validation. This issue is fixed in macOS Golden Gate 27. Mounting a maliciously crafted exFAT volume may cause unexpected system termination or kernel memory disclosure.

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0.0/ 10 priority

Sources & remediation

Vendor / third-party advisories
Weakness type (CWE)
CWE-125

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

NONE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • macos

Threat summary

  • 1 mentions across 1 observed day

What's happening

  • 1 total mentions across 1 day

Affected systems

Vendors
apple
Products
macos

Deep dive

Activity timeline1 mentions / 1d
00111Mentions · 2026-10-13: 110-13
Referenced assets1 URL
By indicator
Full discourse1 post
  • CyStack@CyStackSecurity

    CVE-2026-84567, CVE-2026-86900: Two flaws in @Apple macOS file system drivers. cd9660 mishandles memory when parsing ISO images, so an ordinary app can panic the kernel. exFAT trusts volume metadata, so a crafted USB drive or disk image triggers a kernel panic or leaks kernel memory. All patched in macOS Golden Gate 27. Found by a CyStack researcher. Details at https://cystack.net/disclosures #CyStack #CyberSecurity #Vulnerability #Apple #macOS #EnterpriseSecurity #InfoSec

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    3.7K followersView on X
CPE platform detail1 entries

1 of 1 entries

PartVendorProductVersionTarget SWTarget HW
OSapplemacos---

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