What is CVE-2026-86875?

CVE-2026-86875 is a medium-severity vulnerability in Apple Xcode, classified under Improper Input Validation. CVSS score: 4.3/10. Published 2026-10-20.

How severe is CVE-2026-86875?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Improper input validation in Apple Xcode

CVE-2026-86875

An input validation issue was addressed with improved input validation. This issue is fixed in Xcode 27. Parsing a maliciously crafted binary may lead to unexpected app termination.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

Published 2026-10-20 · last modified 2026-10-20.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Apple Xcode

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

support.apple.com/en-us/149040

Frequently asked questions

What is CVE-2026-86875?: CVE-2026-86875 is a medium-severity vulnerability in Apple Xcode, classified under Improper Input Validation. CVSS score: 4.3/10. Published 2026-10-20.
How severe is CVE-2026-86875?: Medium severity. CVSS v3 base score is 4.3 out of 10.