What is CVE-2022-26707?

CVE-2022-26707 is a medium-severity vulnerability in Apple macOS, classified under Improper Input Validation. CVSS score: 5.5/10. Published 2022-09-23.

How severe is CVE-2022-26707?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Improper input validation in Apple macOS

CVE-2022-26707

An issue in the handling of environment variables was addressed with improved validation. This issue is fixed in macOS Monterey 12.4. A user may be able to view sensitive user information.

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

Published 2022-09-23 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.003 (19.9th percentile), scored 2026-10-03.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 20th percentile — 19.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: +0.000

Affected products

Apple macOS — versions unspecified

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

support.apple.com/en-us/HT213257 (Release Notes, Vendor Advisory)

Frequently asked questions

What is CVE-2022-26707?: CVE-2022-26707 is a medium-severity vulnerability in Apple macOS, classified under Improper Input Validation. CVSS score: 5.5/10. Published 2022-09-23.
How severe is CVE-2022-26707?: Medium severity. CVSS v3 base score is 5.5 out of 10.