Is CVE-2023-42939 in the CISA KEV catalog?

No. CVE-2023-42939 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2023-42939?

CVE-2023-42939 has a CVSS v3 base score of 3.3 (LOW).

What is the EPSS score for CVE-2023-42939?

CVE-2023-42939 has an EPSS score of 0.17% (7th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2023-42939?

Upgrade ipad os to 17.1 or later. Fixes are available for 2 affected products.

CVE & CISA-KEV Catalog

CVE-2023-42939

LOW

3.3

CVSS v3

NVD

Description

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.

CWE-841

How to fix

Remediation Available

ipad osNVD

Affected:< 17.1Fixed in:17.1CVE-2023-42939derived from NVD

iphone osNVD

Affected:< 17.1Fixed in:17.1CVE-2023-42939derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityLow

IntegrityNone

AvailabilityNone

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Exploit Intelligence

0.17%probability of exploitation in 30 days

7thpercentile

Low risk: more likely to be exploited than 7% of all known CVEs.

References

Vendor Advisory1

support.apple.com

Other references1

support.apple.com

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-11-04.