What is CVE-2023-27945?

CVE-2023-27945 is a medium-severity vulnerability in Apple macOS, classified under Out-of-bounds Read. CVSS score: 6.3/10. Published 2023-05-08.

How severe is CVE-2023-27945?

Medium severity. CVSS v3 base score is 6.3 out of 10.

Out-of-bounds Read in Apple macOS

CVE-2023-27945

This issue was addressed with improved entitlements. This issue is fixed in Xcode 14.3, macOS Big Sur 11.7.7, macOS Monterey 12.6.6. A sandboxed app may be able to collect system logs.

Vulnerability class: Buffer Overflow

Published 2023-05-08 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.002 (14.2th percentile), scored 2026-10-03.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 14th percentile — 14.2% 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 macOS — versions unspecified
Apple Xcode — versions unspecified

Weakness classification (CWE)

CWE-125 — Out-of-bounds Read

References

support.apple.com/en-us/HT213759
support.apple.com/en-us/HT213679 (Vendor Advisory)
support.apple.com/en-us/HT213760

Frequently asked questions

What is CVE-2023-27945?: CVE-2023-27945 is a medium-severity vulnerability in Apple macOS, classified under Out-of-bounds Read. CVSS score: 6.3/10. Published 2023-05-08.
How severe is CVE-2023-27945?: Medium severity. CVSS v3 base score is 6.3 out of 10.