CVE-2018-4089
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?
A public exploit is published in Exploit-DB (verified) and the impact is high, while EPSS rates exploitation at 6.4%. Anyone can run this; patch or mitigate before the next change window and check exposed instances for signs of use.
Description
An issue was discovered in certain Apple products. iOS before 11.2.5 is affected. macOS before 10.13.3 is affected. Safari before 11.0.3 is affected. tvOS before 11.2.5 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 3.0
- 8.8 HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS
- 6.39% probability · 94th percentile
- Public exploits
- 1 in Exploit-DB · verified · first 1 February 2018
- CISA KEV
- Not listed
- Weakness
- CWE-119
- Affected
- apple/apple tv · apple/safari · apple/iphone os · apple/mac os x
- Source
- product-security@apple.com
EPSS moved from 7.7% on 21 September 2026 to 6.4% on 27 October 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.
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://www.securityfocus.com/bid/102778Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1040265Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1040266Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1040267Third Party Advisory, VDB Entry
- https://support.apple.com/HT208462Vendor Advisory
- https://support.apple.com/HT208463Vendor Advisory
- https://support.apple.com/HT208465Vendor Advisory
- https://support.apple.com/HT208475Vendor Advisory
- https://www.exploit-db.com/exploits/43937/Exploit, Third Party Advisory, VDB Entry
- http://www.securityfocus.com/bid/102778Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1040265Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1040266Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1040267Third Party Advisory, VDB Entry
- https://support.apple.com/HT208462Vendor Advisory
- https://support.apple.com/HT208463Vendor Advisory
- https://support.apple.com/HT208465Vendor Advisory
- https://support.apple.com/HT208475Vendor Advisory
- https://www.exploit-db.com/exploits/43937/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.