CVE-2018-4190: apple icloud Insufficiently Protected Credentials
Vulnerability summary
CVE-2018-4190 is a high (CVSS 8.8) Insufficiently Protected Credentials vulnerability in apple icloud. EPSS estimates a 3.40% chance of exploitation in the next 30 days, higher than 88.6% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 5 · Related 4Timeline
- 08-06-2018PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
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. The issue involves the "WebKit" component. It allows remote attackers to obtain sensitive credential information that is transmitted during a CSS mask-image fetch.
CVSS metrics
4 scores · 3 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated8.8HighCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated8.8HighCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS trend
Probability
3.40%
Chance of exploitation in the next 30 days
Percentile
89%
Versus all other CVEs
30-day change
-0.13 pp
From 3.52% on 18-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Ubuntu4 products
- qtwebkit-opensource-srcAll versions (No fix recorded)
- qtwebkit-sourceAll versions (No fix recorded)
- webkit2gtk< 2.20.3-0ubuntu0.16.04.1 | < 2.20.3-0ubuntu0.18.04.1
- webkitgtkAll versions (No fix recorded)
Canonical1 product
- ubuntu_linuxEOL16.04 | 17.10 | 18.04
Debian1 product
- webkit2gtk< 2.20.3-1
4 vendors · 11 products
