CVE-2022-42856A 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…
- 8.8HighCVSS base score
- 8.5%Exploitation in 30 daysEPSS · top 4.9% of all CVEs
- YesKnown exploitedin CISA's KEV since 14 Dec 2022
- YesPublic exploitsa reference or SSVC says so
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..
Exploited in the wild
CISA lists this vulnerability in its Known Exploited Vulnerabilities catalog as Apple iOS Type Confusion Vulnerability.
- Added
- 14 Dec 2022
- Fix due (US federal)
- 4 Jan 2023
- Used by ransomware
- Not known
Apply updates per vendor instructions.
ENISA's EU Vulnerability Database lists it as exploited, from CISA's KEV, since 14 Dec 2022.
Public exploit
An exploit or proof of concept is public: anyone can try it against an unpatched system. CISA's SSVC rates its exploitation: it is being exploited.
Timeline
ID reserved
By apple
- 2 months later
· 2 months later
Added to CISA KEV
Known exploited in the wild
- 1 day later
· 1 day later
Published
- 3 years later
· 3 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| CISA-ADPADP (enrichment) | 3.1 | High8.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| NVDNVD · Analyzed | 3.1 | High8.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 8.5% · top 4.9% of all CVEs (12 Nov 2026)
- CISA SSVC
- Exploitation: active · Automatable: no · Technical impact: total
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.8.
Affected products
References
References13
- https://support.apple.com/en-us/HT213535 (opens in a new tab)x_transferred
- https://support.apple.com/en-us/HT213532 (opens in a new tab)x_transferred
- https://support.apple.com/en-us/HT213531 (opens in a new tab)x_transferred
- https://support.apple.com/en-us/HT213516 (opens in a new tab)x_transferred
- https://support.apple.com/en-us/HT213537 (opens in a new tab)x_transferred
- 20221220 APPLE-SA-2022-12-13-2 iOS 15.7.2 and iPadOS 15.7.2 (opens in a new tab)mailing-listx_transferred
- 20221220 APPLE-SA-2022-12-13-4 macOS Ventura 13.1 (opens in a new tab)mailing-listx_transferred
- 20221220 APPLE-SA-2022-12-13-3 iOS 16.1.2 (opens in a new tab)mailing-listx_transferred
- 20221220 APPLE-SA-2022-12-13-7 tvOS 16.2 (opens in a new tab)mailing-listx_transferred
- 20221220 APPLE-SA-2022-12-13-9 Safari 16.2 (opens in a new tab)mailing-listx_transferred
- [oss-security] 20221226 WebKitGTK and WPE WebKit Security Advisory WSA-2022-0011 (opens in a new tab)mailing-listx_transferred
- https://security.gentoo.org/glsa/202305-32 (opens in a new tab)x_transferred
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-42856 (opens in a new tab)government-resource
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- CISA KEV catalog (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2022-45919 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2022-42856)Record last updated .