Background exploitation KEV catalog

CVE-2022-22674

Apple macOS Out-of-Bounds Read Vulnerability

An out-of-bounds read issue existed that led to the disclosure of kernel memory. This was addressed with improved input validation. This issue is fixed in macOS Monterey 12.3.1, Security Update 2022-004 Catalina, macOS Big Sur 11.6.6. A…

CheckOps priority index

3.4/10 Patch within 7 days

Severity5.5

Probability0.1

Exploitation2/5

Severity = CVSS. Probability = EPSS (FIRST). Exploitation = public signals: KEV, EUVD, ransomware, EPSS above 10 %, no account required.

EPSS · today 1.1% higher than 65.3% of CVEs

CVSS 3.1 5.5 AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:

Exploited for 1,674 days 04 Apr 2022

CISA due date 25 Apr 2022 for US federal agencies

Exploitation probability EPSS · FIRST

EPSS probability (%)Percentile among all CVEs

Exploitation signals 2 / 5

KEV catalog (CISA)04 Apr 2022
Exploited in EUVD (ENISA)04 Apr 2022
Used by ransomwareno
EPSS above 10 %1.1%
No account, over the networkno

What to do

Fix

Apply the vendor’s fix as soon as it is available.

CISA guidance: Apply updates per vendor instructions.

Meanwhile

Take the service off the internet or restrict access to it, watch the logs and look for signs of compromise.

Manufacturers (CRA)

Exploited vulnerability in your product: early warning to ENISA within 24 h, then notification within 72 h (Article 14 of the Cyber Resilience Act). The CRA explained

Description ENISA EUVD

Affected products

macOS

Affected versions

unspecified <2022
unspecified <12.3
unspecified <11.6

Weaknesses (CWE)

CWE-20 CWE-125

Open source packages OSV

Affected libraries according to OSV, with fixed versions.

Timeline

04 Apr 2022
Exploitation reported (ENISA)
04 Apr 2022
Added to the KEV catalog
25 Apr 2022
CISA remediation due date
26 May 2022
Published

References

Other exploited vulnerabilities from the same vendor

CVE-2026-86950Apple Multiple Products Out-of-Bounds Write Vulnerability
6.7 · Actively exploited
CVE-2026-65400Apple macOS Improper Authentication Vulnerability
5.8 · Actively exploited
CVE-2025-43520Apple Multiple Products Classic Buffer Overflow Vulnerability
3.4 · Background exploitation
CVE-2025-43510Apple Multiple Products Improper Locking Vulnerability
4.3 · Background exploitation
CVE-2025-31277Apple Multiple Products Buffer Overflow Vulnerability
5.4 · Background exploitation
CVE-2023-43000Apple Multiple products Use-After-Free Vulnerability
5.4 · Background exploitation