What is CVE-2026-28841?

CVE-2026-28841 is a medium-severity vulnerability in Apple Macos, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 6.2/10. Published 2026-03-25.

How severe is CVE-2026-28841?

Medium severity. CVSS v3 base score is 6.2 out of 10.

Buffer overflow in Apple Macos

CVE-2026-28841

A buffer overflow was addressed with improved size validation. This issue is fixed in macOS Tahoe 26.4. A buffer overflow may result in memory corruption and unexpected app termination.

Vulnerability class: Buffer Overflow

EPSS: 0.002 (5.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.2 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Apple Macos — versions 0

Weakness classification (CWE)

CWE-120 — Buffer Copy without Checking Size of Input (Classic Buffer Overflow)

References

product-security@apple.com (Release Notes, Vendor Advisory)

Frequently asked questions

What is CVE-2026-28841?: CVE-2026-28841 is a medium-severity vulnerability in Apple Macos, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 6.2/10. Published 2026-03-25.
How severe is CVE-2026-28841?: Medium severity. CVSS v3 base score is 6.2 out of 10.