CVEs / CVE-2022-42856
CVE-2022-42856: Apple iOS Type Confusion Vulnerability
- Known exploited in the CISA KEV catalog since 14 Dec 2022
- high 8.8 CVSS 3.1 (NVD)
- EPSS 8.52% chance of exploitation in the next 30 days, higher than 95% of CVEs (30 Oct 2026)
- Last changed at its sources
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Summary
Apple iOS contains a type confusion vulnerability when processing maliciously crafted web content leading to code execution.
Description
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 arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited against versions of iOS released before iOS 15.1..
Affected and fixed versions
| Product | Affected | Fixed in |
|---|---|---|
| Apple tvOS | from unspecified, before 16.2 | 16.2 |
| Apple tvOS | from unspecified, before 13.1 | 13.1 |
| Apple tvOS | from unspecified, before 15.7 | 15.7 |
| Apple tvOS | from unspecified, before 16.1 | 16.1 |
Exploitation
| In CISA KEV since | 14 Dec 2022 |
|---|---|
| Due date for US federal agencies | 4 Jan 2023 |
| Used in ransomware campaigns | Unknown |
| Required action | Apply updates per vendor instructions. |
Severity
| CVSS 3.1 | 8.8 highCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HScored by NVD |
|---|---|
| Weakness | CWE-843 |
References
- CVE-2022-42856 on NVD
- CVE-2022-42856 in the CISA KEV catalog
- https://support.apple.com/en-us/HT213516 (cited by CISA)
- CVE-2022-42856 on OSV
- http://seclists.org/fulldisclosure/2022/Dec/21 Mailing List, Third Party Advisory
- http://seclists.org/fulldisclosure/2022/Dec/22 Mailing List, Third Party Advisory
- http://seclists.org/fulldisclosure/2022/Dec/23 Mailing List, Third Party Advisory
- http://seclists.org/fulldisclosure/2022/Dec/26 Mailing List, Third Party Advisory
- http://seclists.org/fulldisclosure/2022/Dec/28 Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2022/12/26/1 Mailing List, Third Party Advisory
- https://security.gentoo.org/glsa/202305-32 Third Party Advisory
- https://support.apple.com/en-us/HT213516 Release Notes, Vendor Advisory
- https://support.apple.com/en-us/HT213531 Release Notes, Vendor Advisory
- https://support.apple.com/en-us/HT213532 Release Notes, Vendor Advisory
- https://support.apple.com/en-us/HT213535 Release Notes, Vendor Advisory
- https://support.apple.com/en-us/HT213537 Release Notes, Vendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-42856 US Government Resource
Sources
Exploitation status from the CISA Known Exploited Vulnerabilities catalog. EPSS scores from FIRST. Descriptions, severity and references from the National Vulnerability Database. Open-source package versions from OSV (CC-BY 4.0). Text is shown as each source states it; Stackurity does not edit it. Check the vendor's advisory before acting.
This product uses data from the NVD API but is not endorsed or certified by the NVD.