CVE-2022-42856

Exploitation

Exploited in the wild. Listed in the CISA Known Exploited Vulnerabilities catalog on 2022-12-14. Federal remediation due 2023-01-04.

SSVC decision

• ExploitationactiveCISA reports credible evidence of active exploitation.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

8.52% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 94.6% of scored records. A rank, not a probability.

NVD base score

8.8 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

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

NVD analysis status

Analyzed. NVD last modified this record on 2026-06-17.

Red Hat severity

Important. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2022-12-15 00:00Z3 YR AGO

Last updated

2025-10-21 23:15Z10 MO AGO

Reserved

2022-10-11

Assigning CNA

apple

Record state

PUBLISHED

Severity

High (CVSS 8.8)

CNA CVSS vector

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

Weaknesses

• CWE-843Access of Resource Using Incompatible Type ('Type Confusion')Base

Data version

5.1

Document digest

b26b5eb49cf0ada28c245238469388090fe7c7a5ef383971cf70465b82274781

• support.apple.comhttps://support.apple.com/en-us/HT213535
• support.apple.comhttps://support.apple.com/en-us/HT213532
• support.apple.comhttps://support.apple.com/en-us/HT213531
• support.apple.comhttps://support.apple.com/en-us/HT213516
• support.apple.comhttps://support.apple.com/en-us/HT213537
• seclists.org20221220 APPLE-SA-2022-12-13-2 iOS 15.7.2 and iPadOS 15.7.2http://seclists.org/fulldisclosure/2022/Dec/21mailing-list
• seclists.org20221220 APPLE-SA-2022-12-13-4 macOS Ventura 13.1http://seclists.org/fulldisclosure/2022/Dec/23mailing-list
• seclists.org20221220 APPLE-SA-2022-12-13-3 iOS 16.1.2http://seclists.org/fulldisclosure/2022/Dec/22mailing-list
• seclists.org20221220 APPLE-SA-2022-12-13-7 tvOS 16.2http://seclists.org/fulldisclosure/2022/Dec/26mailing-list
• seclists.org20221220 APPLE-SA-2022-12-13-9 Safari 16.2http://seclists.org/fulldisclosure/2022/Dec/28mailing-list
• www.openwall.com[oss-security] 20221226 WebKitGTK and WPE WebKit Security Advisory WSA-2022-0011http://www.openwall.com/lists/oss-security/2022/12/26/1mailing-list
• security.gentoo.orghttps://security.gentoo.org/glsa/202305-32
• www.cisa.govhttps://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-42856government-resource