CVE-2018-4240 is a denial-of-service vulnerability affecting Apple's Messages component across iOS, macOS, tvOS, and watchOS. A remote attacker can trigger the denial of service by sending a specially crafted message. With a CVSS score of 6.5 (Medium), it requires user interaction (UI:R) but has a high impact on availability (A:H). While not on CISA's KEV catalog, a Proof-of-Concept exploit is available on ExploitDB, and it has received some community and media attention.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 11.4CPE matchmatch criteria | cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* | ||
< 10.13.5CPE matchmatch criteria | cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:* | ||
< 11.4CPE matchmatch criteria | cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:* | ||
< 4.3.1CPE matchmatch criteria | cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.0
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.