Out-of-bounds Read in Apple macOS

CVE-2025-43283

An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in macOS Tahoe 26. An app may be able to cause unexpected system termination.

Vulnerability class: Buffer Overflow

Published · last modified .

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:N/I:N/A:L.

EPSS exploit prediction

EPSS: 0.004 (30.8th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 31st percentile — 30.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2025-43283: held from 0.004 to 0.004.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2025-43283?
CVE-2025-43283 is a low-severity vulnerability in Apple macOS, classified under Out-of-bounds Read. CVSS score: 3.3/10. Published 2025-09-15.
How severe is CVE-2025-43283?
Low severity. CVSS v3 base score is 3.3 out of 10.
Is CVE-2025-43283 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.