What is CVE-2023-42939?

CVE-2023-42939 is a low-severity vulnerability in Apple iOS And Ipados, classified under Improper Enforcement of Behavioral Workflow. CVSS score: 3.3/10. Published 2024-02-21.

How severe is CVE-2023-42939?

Low severity. CVSS v3 base score is 3.3 out of 10.

Vulnerability in Apple iOS And Ipados

CVE-2023-42939

A logic issue was addressed with improved checks. This issue is fixed in iOS 17.1 and iPadOS 17.1. A user's private browsing activity may be unexpectedly saved in the App Privacy Report.

Published 2024-02-21 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 3.3 (Low). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.002 (6.0th percentile), scored 2026-10-02.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 6th percentile — 6.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000

Affected products

Apple iOS And Ipados — versions unspecified
Apple Ipad OS
Apple Iphone OS

Weakness classification (CWE)

CWE-841 — Improper Enforcement of Behavioral Workflow

References

support.apple.com/en-us/HT213982 (Vendor Advisory)
af854a3a-2127-422b-91ae-364da2661108

Frequently asked questions

What is CVE-2023-42939?: CVE-2023-42939 is a low-severity vulnerability in Apple iOS And Ipados, classified under Improper Enforcement of Behavioral Workflow. CVSS score: 3.3/10. Published 2024-02-21.
How severe is CVE-2023-42939?: Low severity. CVSS v3 base score is 3.3 out of 10.