What is CVE-2023-42869?

CVE-2023-42869 is a high-severity vulnerability in Apple iOS And Ipados, classified under Out-of-bounds Write. CVSS score: 7.5/10. Published 2024-01-10.

How severe is CVE-2023-42869?

High severity. CVSS v3 base score is 7.5 out of 10.

Buffer overflow in Apple iOS And Ipados

CVE-2023-42869

Multiple memory corruption issues were addressed with improved input validation. This issue is fixed in macOS Ventura 13.4, iOS 16.5 and iPadOS 16.5. Multiple issues in libxml2.

Vulnerability class: Buffer Overflow

Published 2024-01-10 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.005 (41.8th percentile), scored 2026-10-03.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 42nd percentile — 41.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000

Affected products

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

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

support.apple.com/en-us/HT213758 (Release Notes, Vendor Advisory)
support.apple.com/en-us/HT213757 (Release Notes, Vendor Advisory)

Frequently asked questions

What is CVE-2023-42869?: CVE-2023-42869 is a high-severity vulnerability in Apple iOS And Ipados, classified under Out-of-bounds Write. CVSS score: 7.5/10. Published 2024-01-10.
How severe is CVE-2023-42869?: High severity. CVSS v3 base score is 7.5 out of 10.