This CVE exposes a fundamental flaw in how macOS manages trust between third-party network interception tools and its own process isolation guarantees. Apple patched three simultaneous versions — macOS Sequoia 15.7.8, Sonoma 14.8.8, and Tahoe 26.6 — which confirms the vulnerability lives in shared networkExtension framework code rather than in version-specific regressions. That matters: it means any fix patches a common component, and future code divergence could reintroduce the flaw across all branches at once.
The 'logic issue' phrasing in Apple's disclosure is telling. Apple reserves this language for boundary enforcement failures — where individual components function correctly but the cross-component restrictions break down. This is not a buffer overflow or missing bounds check; it's the failure of a trust boundary that Apple itself designed and exposed through its networkExtension API. Every legitimate MDM client, VPN, parental control tool, and antivirus product on macOS operates with exactly the capability this CVE exploits. The attack surface isn't a discrete bug waiting to be discovered — it's the entire ecosystem of Apple-authorized network extensions whose entitlements, if compromised, immediately grant inter-process connection hijacking capability.
What should you do? Audit your fleet for networkExtension entitlements — identify which applications hold them and whether those applications are actively maintained. Abandoned or unpatched MDM and VPN binaries still running on Macs represent a particularly dangerous attack vector: they retain their entitlements but lack active security monitoring. Additionally, review your detection capabilities; because legitimate tools perform identical operations as part of normal function, traditional forensic signatures for cross-process network hijacking are architecturally undermined by Apple's own design choices.
The EPSS score of 0.00385 likely reflects not exploit rarity but detection impossibility — the operation looks identical whether performed by a sanctioned VPN or a compromised binary that inherited its entitlements.