CVE-2019-8506A type confusion issue was addressed with improved memory handling. This issue is fixed in iOS 12.2, tvOS 12.2, watchOS 5.2, Safari 12.1,…
- 8.8HighCVSS base score
- 16.2%Exploitation in 30 daysEPSS · top 3.0% of all CVEs
- YesKnown exploitedin CISA's KEV since 4 May 2022
- 1Public exploitsMetasploit, Nuclei and Exploit-DB
Description
A type confusion issue was addressed with improved memory handling. This issue is fixed in iOS 12.2, tvOS 12.2, watchOS 5.2, Safari 12.1, iTunes 12.9.4 for Windows, iCloud for Windows 7.11. Processing maliciously crafted web content may lead to arbitrary code execution.
Exploited in the wild
CISA lists this vulnerability in its Known Exploited Vulnerabilities catalog as Apple Multiple Products Type Confusion Vulnerability.
- Added
- 4 May 2022
- Fix due (US federal)
- 25 May 2022
- Used by ransomware
- Not known
Apply updates per vendor instructions.
ENISA's EU Vulnerability Database lists it as exploited, from CISA's KEV, since 4 May 2022.
Public exploit
An exploit or proof of concept is public: anyone can try it against an unpatched system. The public collections list an Exploit-DB entry for it. CISA's SSVC rates its exploitation: it is being exploited.
Show the exploits1
Exploit-DB1 entry
- WebKit JavaScriptCore - 'createRegExpMatchesArray' Type Confusion (Exploit-DB entry) (opens in a new tab)
EDB-ID 46647dos, multiplepublished 3 Apr 2019Verified
Modules, templates and exploits as listed by the Metasploit Framework (BSD-3-Clause), ProjectDiscovery's Nuclei templates (MIT) and the Exploit Database (GPLv2), read once a day. Where the data comes from
Timeline
ID reserved
By apple
- 10 months later
· 10 months later
Published
- 2 years later
· 2 years later
Added to CISA KEV
Known exploited in the wild
- 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)
- 16.2% · top 3.0% of all CVEs (14 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
- affected unspecified – < iOS 12.2
- affected unspecified – < tvOS 12.2
- affected unspecified – < watchOS 5.2
- affected unspecified – < Safari 12.1
- affected unspecified – < iTunes 12.9.4 for Windows
- affected unspecified – < iCloud for Windows 7.11
References
References7
- https://support.apple.com/HT209599 (opens in a new tab)x_refsource_MISCx_transferred
- https://support.apple.com/HT209601 (opens in a new tab)x_refsource_MISCx_transferred
- https://support.apple.com/HT209603 (opens in a new tab)x_refsource_MISCx_transferred
- https://support.apple.com/HT209604 (opens in a new tab)x_refsource_MISCx_transferred
- https://support.apple.com/HT209605 (opens in a new tab)x_refsource_MISCx_transferred
- https://support.apple.com/HT209602 (opens in a new tab)x_refsource_MISCx_transferred
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-8506 (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-2019-17896 (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-2019-8506)Record last updated .