What is CVE-2022-26764?

CVE-2022-26764 is a medium-severity vulnerability in Apple Ipados, classified under Out-of-bounds Write. CVSS score: 4.7/10. Published 2022-05-26.

How severe is CVE-2022-26764?

Medium severity. CVSS v3 base score is 4.7 out of 10.

Buffer overflow in Apple Ipados

CVE-2022-26764

A memory corruption issue was addressed with improved validation. This issue is fixed in watchOS 8.6, tvOS 15.5, macOS Monterey 12.4, iOS 15.5 and iPadOS 15.5. An attacker that has already achieved kernel code execution may be able to bypass kernel memory mitigations.

Vulnerability class: Buffer Overflow

Published 2022-05-26 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.7 (Medium). Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N.

EPSS exploit prediction

EPSS: 0.009 (57.8th percentile), scored 2026-10-03.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 58th percentile — 57.8% 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

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

support.apple.com/en-us/HT213258 (Vendor Advisory)
support.apple.com/en-us/HT213253 (Vendor Advisory)
support.apple.com/en-us/HT213254 (Vendor Advisory)
support.apple.com/en-us/HT213257 (Vendor Advisory)

Frequently asked questions

What is CVE-2022-26764?: CVE-2022-26764 is a medium-severity vulnerability in Apple Ipados, classified under Out-of-bounds Write. CVSS score: 4.7/10. Published 2022-05-26.
How severe is CVE-2022-26764?: Medium severity. CVSS v3 base score is 4.7 out of 10.