What is CVE-2022-42856?

CVE-2022-42856 is a high-severity vulnerability in Apple Ipados, classified under Access of Resource Using Incompatible Type (Type Confusion). CVSS score: 8.8/10. Published 2022-12-15.

How severe is CVE-2022-42856?

High severity. CVSS v3 base score is 8.8 out of 10.

Is CVE-2022-42856 known to be exploited?

Yes. CVE-2022-42856 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-12-14), indicating it is being actively exploited. 5 public proof-of-concept repositories are indexed.

Vulnerability in Apple Ipados

CVE-2022-42856

A type confusion issue was addressed with improved state handling. This issue is fixed in Safari 16.2, tvOS 16.2, macOS Ventura 13.1, iOS 15.7.2 and iPadOS 15.7.2, iOS 16.1.2. Processing maliciously crafted web content may lead to arbitrar…

EPSS: 0.085 (94.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

CWE-843 — Access of Resource Using Incompatible Type (Type Confusion)

CISA KEV (Known Exploited Vulnerabilities)

This CVE is on the CISA KEV catalog, added on 2022-12-14. CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.

BOD 22-01 due date: 2023-01-04.

Required action: Apply updates per vendor instructions.

Public proof-of-concept exploits

References

product-security@apple.com (Release Notes, Vendor Advisory)
product-security@apple.com (Release Notes, Vendor Advisory)
product-security@apple.com (Release Notes, Vendor Advisory)
product-security@apple.com (Release Notes, Vendor Advisory)
product-security@apple.com (Release Notes, Vendor Advisory)
product-security@apple.com (mailing-list, Mailing List, Third Party Advisory)
product-security@apple.com (mailing-list, Mailing List, Third Party Advisory)
product-security@apple.com (mailing-list, Mailing List, Third Party Advisory)
product-security@apple.com (mailing-list, Mailing List, Third Party Advisory)
product-security@apple.com (mailing-list, Mailing List, Third Party Advisory)

Frequently asked questions

What is CVE-2022-42856?: CVE-2022-42856 is a high-severity vulnerability in Apple Ipados, classified under Access of Resource Using Incompatible Type (Type Confusion). CVSS score: 8.8/10. Published 2022-12-15.
How severe is CVE-2022-42856?: High severity. CVSS v3 base score is 8.8 out of 10.
Is CVE-2022-42856 known to be exploited?: Yes. CVE-2022-42856 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-12-14), indicating it is being actively exploited. 5 public proof-of-concept repositories are indexed.