CVE-2026-43719Disclosure(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

A use-after-free issue was addressed with improved memory management. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7. Mounting a maliciously crafted SMB network share may lead to system termination.

0.0/ 10 priority

Sources & remediation

Weakness type (CWE)
CWE-416

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

  • Technical details provided in 1 signal
  • Disclosure: 1 classified signal
  • 1 total mentions across 1 day

Affected systems

Vendors
Products
macos

Deep dive

Activity timeline1 mentions / 1d
00111Mentions · 2026-09-18: 1Technical Details · 2026-09-18: 109-18
Signal classification1 categories
Disclosure
1100.0%
Referenced assets1 URL
By indicator
Full discourse1 post
  • Ryx@PadhiyarRushi
    Disclosure

    Kernel-level WebDAV and SMB bugs landed in the same Sequoia 15.8 drop. WebDAV: CVE-2026-65374 (code execution on malicious server) SMB: multiple OOB reads/writes and UAFs when connecting to a malicious share (CVE-2026-43719, 84515, 65365, etc.) Network file systems remain a reliable source of high-impact client bugs. https://support.apple.com/en-us/149043 #Cybersecurity #AI #AISecurity #MCP #Claude #GPT #Infosec #Trending #macOS #KernelSecurity

    Post summary

    The text discloses newly identified kernel-level WebDAV and SMB vulnerabilities in macOS Sequoia with technical descriptions (RCE, OOB, UAF) and CVE identifiers, but provides no PoC, exploit, patch, or exploitation claims.

    10030523
    954 followersView on X
CPE platform detail1 entries

1 of 1 entries

PartVendorProductVersionTarget SWTarget HW
OSapplemacos---

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