CVE-2026-86871 PUBLISHED

Assigner: apple
Reserved: 08.09.2026 Published: 20.10.2026 Updated: 20.10.2026

An integer underflow was addressed with improved input validation. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7. An attacker with control of a network file server may be able to cause unexpected system termination.

Product Status

Vendor Apple
Product macOS
Versions
  • affected from 0 to 15.8 (excl.)
  • affected from 0 to 26.7 (excl.)
  • affected from 0 to 27 (excl.)

References

Problem Types

  • An attacker with control of a network file server may be able to cause unexpected system termination