CVE-2018-4162Icloud Memory Corruption
iOS before 11.3 is affected.
Published Apr 3, 2018 · Updated Aug 4, 2026 · Also known as DEBIAN-CVE-2018-4162, UBUNTU-CVE-2018-4162
Key Facts
Patch immediately- CVE-2018-4162 is a high-severity vulnerability (CVSS 8.8 v3.1) affecting Icloud (Apple), Itunes (Apple), Safari (Apple) and 22 more products.
- It is not listed in any known-exploited vulnerabilities catalog. A public exploit is reported by tracking sources, but no code link is listed yet.
- EPSS estimates a 38% probability of exploitation in the next 30 days.
- Fixed versions are available, including Icloud 7.4, Iphone OS 11.3, Itunes 12.7.4.
- Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.
Scores
CVSS v3.1
8.8
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
38%
Higher than 98.5% of all scored CVEs
Exploit maturity
Weaponized
ATLAS score
56/100
Publication score, see How it works
Exploitation Verdict
KEV listed
Not listed
Federal due date
None
No federal due date
Ransomware use
Not reported
Attributed actors
None named
Exploit & Defence Guidance
Exploit maturity
Weaponized
Public exploit code
1
Proof-of-concept links
In-the-wild evidence
0
Reports of active use
Advisories And Exploit References
Description
An issue was discovered in certain Apple products. iOS before 11.3 is affected. Safari before 11.1 is affected. iCloud before 7.4 on Windows is affected. iTunes before 12.7.4 on Windows is affected. tvOS before 11.3 is affected. watchOS before 4.3 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.
Affected Products
102 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| IcloudApple | See advisory | 7.4 |
| ItunesApple | See advisory | 12.7.4 |
| SafariApple | See advisory | 11.1 |
| Webkitgtk\+Webkitgtk | See advisory | 2.20.4 |
| Iphone OSApple | See advisory | 11.3 |
Patched Releases
Icloud
7.4
Iphone OS
11.3
Itunes
12.7.4
Safari
11.1
Tvos
11.3
Watchos
4.3
libjavascriptcoregtk-4_0-18
2.20.3-11.1, 2.20.3-2.23.8, 2.22.5-3.13.1, 2.22.5-lp150.2.9.1, 2.32.4-1.1
libjavascriptcoregtk-4_0-18-32bit
2.20.3-11.1, 2.22.5-lp150.2.9.1, 2.32.4-1.1
libwebkit2gtk-4_0-37
2.20.3-11.1, 2.20.3-2.23.8, 2.22.5-3.13.1, 2.22.5-lp150.2.9.1, 2.32.4-1.1
libwebkit2gtk-4_0-37-32bit
2.20.3-11.1, 2.22.5-lp150.2.9.1, 2.32.4-1.1
libwebkit2gtk3-lang
2.20.3-11.1, 2.20.3-2.23.8, 2.22.5-3.13.1, 2.22.5-lp150.2.9.1, 2.32.4-1.1
typelib-1_0-JavaScriptCore-4_0
2.20.3-11.1, 2.20.3-2.23.8, 2.22.5-3.13.1, 2.22.5-lp150.2.9.1, 2.32.4-1.1
typelib-1_0-WebKit2-4_0
2.20.3-11.1, 2.20.3-2.23.8, 2.22.5-3.13.1, 2.22.5-lp150.2.9.1, 2.32.4-1.1
typelib-1_0-WebKit2WebExtension-4_0
2.20.3-11.1, 2.20.3-2.23.8, 2.22.5-3.13.1, 2.22.5-lp150.2.9.1, 2.32.4-1.1
webkit-jsc-4
2.20.3-11.1, 2.22.5-lp150.2.9.1, 2.32.4-1.1
webkit2gtk
2.20.0-2, 2.20.1-0ubuntu0.16.04.1
webkit2gtk-4_0-injected-bundles
2.20.3-11.1, 2.20.3-2.23.8, 2.22.5-3.13.1, 2.22.5-lp150.2.9.1, 2.32.4-1.1
webkit2gtk3
2.20.3-11.1, 2.20.3-2.23.8, 2.22.5-3.13.1
webkit2gtk3-devel
2.20.3-11.1, 2.20.3-2.23.8, 2.22.5-3.13.1, 2.22.5-lp150.2.9.1, 2.32.4-1.1
webkit2gtk3-minibrowser
2.22.5-lp150.2.9.1, 2.32.4-1.1
webkit2gtk3-plugin-process-gtk2
2.20.3-11.1, 2.22.5-lp150.2.9.1
Webkitgtk\+
2.20.4
Timeline
Publicly disclosed
Apr 3, 2018
Last updated
Aug 4, 2026
Weakness Type
- CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
References
- advisorysecurity-tracker.debian.org · CVE-2018-4162
- advisoryubuntu.com · CVE-2018-4162
- advisorycve.org · CVERecord
- advisorybugzilla.suse.com · 1075775
- advisorybugzilla.suse.com · 1077535
FAQ
Common Questions.
An issue was discovered in certain Apple products.
Affected: Icloud (Apple); Itunes (Apple); Safari (Apple), among others. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
A public exploit is reported by tracking sources, but no code link is listed yet.
Fixed versions are available, including Icloud 7.4, Iphone OS 11.3, Itunes 12.7.4.
Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.
Is CVE-2018-4162 On Your Attack Surface?
Brandefense matches it against the products discovered on your perimeter and opens a finding the day a CVE like this is listed.
Request A Demo