CVE-2018-4131
It allows attackers to bypass the Secure Input Mode protection mechanism, and log keystrokes of arbitrary apps, via a crafted app that scans key states.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.12%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
An issue was discovered in certain Apple products. iOS before 11.3 is affected. macOS before 10.13.4 is affected. The issue involves the "WindowServer" component. It allows attackers to bypass the Secure Input Mode protection mechanism, and log keystrokes of arbitrary apps, via a crafted app that scans key states.
- CVSS 3.0
- 7.8 HIGHCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS
- 1.12% probability · 66th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Affected
- apple/iphone os · apple/mac os x
- Source
- product-security@apple.com
EPSS 1.1% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://www.securityfocus.com/bid/103581Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1040604Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1040608Third Party Advisory, VDB Entry
- https://support.apple.com/HT208692Vendor Advisory
- https://support.apple.com/HT208693Vendor Advisory
- https://twitter.com/boastr_net/status/979624397664333824Third Party Advisory
- http://www.securityfocus.com/bid/103581Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1040604Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1040608Third Party Advisory, VDB Entry
- https://support.apple.com/HT208692Vendor Advisory
- https://support.apple.com/HT208693Vendor Advisory
- https://twitter.com/boastr_net/status/979624397664333824Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.