CVE-2018-4233
It allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via a crafted web site.
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 53.8%, higher than 99% of all known CVEs. Patch or mitigate before the next change window.
Description
An issue was discovered in certain Apple products. iOS before 11.4 is affected. Safari before 11.1.1 is affected. iCloud before 7.5 on Windows is affected. iTunes before 12.7.5 on Windows is affected. tvOS before 11.4 is affected. watchOS before 4.3.1 is affected. The issue involves the "WebKit" component. It allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via a crafted web site.
- CVSS 3.1
- 8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS
- 53.82% probability · 99th percentile
- Public exploits
- 1 in Exploit-DB · verified · first 14 December 2018
- CISA KEV
- Not listed
- Weakness
- CWE-119
- Affected
- apple/safari · apple/iphone os · apple/tvos · apple/watchos · apple/icloud · apple/itunes · canonical/ubuntu linux
- Source
- product-security@apple.com
EPSS 53.8% since 27 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
Public exploits (1)
Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.
References
- http://packetstormsecurity.com/files/153148/Safari-Webkit-Proxy-Object-Type-Confusion.html
- http://www.securitytracker.com/id/1041029Third Party Advisory, VDB Entry
- https://security.gentoo.org/glsa/201808-04Third Party Advisory
- https://support.apple.com/HT208848Vendor Advisory
- https://support.apple.com/HT208850Vendor Advisory
- https://support.apple.com/HT208851Vendor Advisory
- https://support.apple.com/HT208852Vendor Advisory
- https://support.apple.com/HT208853Vendor Advisory
- https://support.apple.com/HT208854Vendor Advisory
- https://usn.ubuntu.com/3687-1/Third Party Advisory
- https://www.exploit-db.com/exploits/45998/Exploit, Third Party Advisory, VDB Entry
- http://packetstormsecurity.com/files/153148/Safari-Webkit-Proxy-Object-Type-Confusion.html
- http://www.securitytracker.com/id/1041029Third Party Advisory, VDB Entry
- https://security.gentoo.org/glsa/201808-04Third Party Advisory
- https://support.apple.com/HT208848Vendor Advisory
- https://support.apple.com/HT208850Vendor Advisory
- https://support.apple.com/HT208851Vendor Advisory
- https://support.apple.com/HT208852Vendor Advisory
- https://support.apple.com/HT208853Vendor Advisory
- https://support.apple.com/HT208854Vendor Advisory
- https://usn.ubuntu.com/3687-1/Third Party Advisory
- https://www.exploit-db.com/exploits/45998/Exploit, Third Party Advisory, VDB Entry
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.