CVE-2026-39873Patch(apple / macos)

LOWCVSS 9.8 · CRITICAL

Signal is active with 1 mentions in latest observed window

Immediate actions

Patch apple macos systems immediately

Recommended action window: Monitor and triage in normal cycle

NVD description

The issue was addressed with improved memory handling. This issue is fixed in macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6. Connecting to a malicious SMB server may lead to unexpected system termination.

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0.5/ 10 priority

Sources & remediation

Vendor / third-party advisories

Weakness type (CWE)

CWE-119

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

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

Patch or workaround signal is available
1 mentions across 1 observed day

What's happening

Patch or workaround mentioned in 1 signal
Technical details provided in 1 signal
1 total mentions across 1 day

Affected systems

Vendors

apple

Products

macos

Deep dive

Activity timeline1 mentions / 1d

Signal classification1 categories

Patch

1100.0%

Referenced assets1 URL

By indicator

http://adkcyber.com

Full discourse1 post

ADK Cyber@ADKCyber92d
Patch
macOS users face CVE-2026-39873 (CVSS 9.8) when connecting to a malicious SMB server. Update to Sequoia 15.7.8, Sonoma 14.8.8, or Tahoe 26.6. Review at http://adkcyber.com. via NVD Recent High CVSS #CyberSecurity #InfoSec #Vulnerability https://t.co/I6Z7a84eRW
Post summary
The post announces a high‑severity CVE affecting macOS SMB connections, highlights the need to update OS versions, and provides a link for further review.
0000068
90 followersView on X

CPE platform detail1 entries

Part:

Vendor:

Product:

Version:

Target SW:

Target HW:

1 of 1 entries

Part	Vendor	Product	Version	Target SW	Target HW
OS	apple	macos	-	-	-

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