What is CVE-2023-23519?

CVE-2023-23519 is a high-severity vulnerability in Apple iOS And Ipados, classified under Out-of-bounds Write. CVSS score: 7.5/10. Published 2023-02-27.

How severe is CVE-2023-23519?

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

Buffer overflow in Apple iOS And Ipados

CVE-2023-23519

A memory corruption issue was addressed with improved state management. This issue is fixed in watchOS 9.3, tvOS 16.3, macOS Ventura 13.2, iOS 16.3 and iPadOS 16.3. Processing an image may lead to a denial-of-service.

Vulnerability class: Buffer Overflow

Published 2023-02-27 · 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: 0.009 (59.5th percentile), scored 2026-10-03.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 60th percentile — 59.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000

Affected products

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

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

support.apple.com/en-us/HT213606 (Vendor Advisory)
support.apple.com/en-us/HT213601 (Vendor Advisory)
support.apple.com/en-us/HT213605 (Vendor Advisory)
support.apple.com/en-us/HT213599 (Vendor Advisory)

Frequently asked questions

What is CVE-2023-23519?: CVE-2023-23519 is a high-severity vulnerability in Apple iOS And Ipados, classified under Out-of-bounds Write. CVSS score: 7.5/10. Published 2023-02-27.
How severe is CVE-2023-23519?: High severity. CVSS v3 base score is 7.5 out of 10.