CVE-2018-4441

Exp

A memory corruption issue was addressed with improved memory handling. This issue affected versions prior to iOS 12.1.1, tvOS 12.1.1, watchOS 5.1.2, Safari 12.0.2, iTunes 12.9.2 for Windows, iCloud for Windows 7.9.

Published: 2019-04-03 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2018-4441 is rated High Exploit Risk (79.4/100): CVSS High severity, with high exploitation likelihood (EPSS 45.97%, 98th percentile). 2 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2018-4441

EDB-ID Source Kind Published Link
46522 exploit_db edb 2019-03-08 Exploit-DB ↗
46072 exploit_db edb 2019-01-02 Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2018-4441

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-05-15 55.43% 45.97% -9.46%
2 2026-03-04 56.22% 55.43% -0.79%
3 2026-01-17 — 56.22% —

Full EPSS history (31 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2018-4441

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
8.8 3.0 HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.8 5.9 [email protected]
6.8 2.0 MEDIUM
AV:N/AC:M/Au:N/C:P/I:P/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 8.6 6.4 [email protected]

Weakness enumeration for CVE-2018-4441

OS Trackers for CVE-2018-4441

vendor priority summary link
debian unimportant CVE-2018-4441 unimportant priority: Debian including 1 source packages (webkit2gtk), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2018-4441
suse critical CVE-2018-4441 severity critical: SUSE including 180 source package names (WebKit2GTK-4.1-lang-2.36.0-150400.2.13, WebKit2GTK-5.0-lang-2.36.0-150400.2.12, …), 314 product×package rows across 49 product lines (SUSE Enterprise Storage 4, SUSE Linux Enterprise Desktop 12 SP3, … (49 product lines)): Fixed 314. https://www.suse.com/security/cve/CVE-2018-4441/
ubuntu medium CVE-2018-4441 medium priority: Ubuntu including 5 source packages (qtwebkit, qtwebkit-opensource-src, qtwebkit-source, webkit2gtk, webkitgtk), 79 status rows across 16 suites (bionic, cosmic, disco, eoan, focal, groovy, hirsute, impish, jammy, kinetic, lunar, mantic, noble, trusty, upstream, xenial): DNE 38, ignored 24, not-affected 11, needs-triage 3, released 3. https://ubuntu.com/security/CVE-2018-4441

Affected software / configurations for CVE-2018-4441

Vendor Product Version Raw CPE
apple safari < 12.0.2 cpe:2.3:a:apple:safari:*:*:*:*:*:*:*:*
apple iphone_os < 12.1.1 cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
apple tvos < 12.1.1 cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*
apple watchos < 5.1.2 cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*
apple icloud < 7.9 cpe:2.3:a:apple:icloud:*:*:*:*:*:*:*:*
apple itunes < 12.9.2 cpe:2.3:a:apple:itunes:*:*:*:*:*:*:*:*

References for CVE-2018-4441

cvelogic Threat Intelligence