What is CVE-2022-26743?

CVE-2022-26743 is a high-severity vulnerability in Apple macOS, classified under Out-of-bounds Write. CVSS score: 7.0/10. Published 2022-05-26.

How severe is CVE-2022-26743?

High severity. CVSS v3 base score is 7.0 out of 10.

Is CVE-2022-26743 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Buffer overflow in Apple macOS

CVE-2022-26743

An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in macOS Monterey 12.4. An attacker that has already achieved code execution in macOS Recovery may be able to escalate to kernel privileges.

Vulnerability class: Buffer Overflow

EPSS: 0.002 (14.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.0 (High). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Apple Macos — versions unspecified

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

Public proof-of-concept exploits

References

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

Frequently asked questions

What is CVE-2022-26743?: CVE-2022-26743 is a high-severity vulnerability in Apple macOS, classified under Out-of-bounds Write. CVSS score: 7.0/10. Published 2022-05-26.
How severe is CVE-2022-26743?: High severity. CVSS v3 base score is 7.0 out of 10.
Is CVE-2022-26743 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.