CVE-2019-8518

Exp

Multiple memory corruption issues were addressed with improved memory handling. This issue is fixed in iOS 12.2, tvOS 12.2, watchOS 5.2, Safari 12.1, iTunes 12.9.4 for Windows, iCloud for Windows 7.11. Processing maliciously crafted web content may lead to arbitrary code execution.

Published: 2019-12-18 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2019-8518 is rated High Exploit Risk (82.9/100): CVSS High severity, with high exploitation likelihood (EPSS 41.80%, 97th percentile). 1 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-2019-8518

EDB-ID Source Kind Published Link
46649 exploit_db edb 2019-04-03 Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2019-8518

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 2026-05-04 43.16% 41.80% -1.36%
2 2026-03-06 43.28% 43.16% -0.13%
3 2025-11-21 — 43.28% —

Full EPSS history (34 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2019-8518

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
8.8 3.1 HIGH
CVSS:3.1/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]
9.3 2.0 HIGH
AV:N/AC:M/Au:N/C:C/I:C/A:C 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:C)
Complete confidentiality impact.
Integrity impact (I:C)
Complete integrity impact.
Availability impact (A:C)
Complete availability impact.
 8.6 10.0 [email protected]

Weakness enumeration for CVE-2019-8518

OS Trackers for CVE-2019-8518

vendor priority summary link
debian not yet assigned CVE-2019-8518 not yet assigned 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-2019-8518
gentoo normal CVE-2019-8518: 1 GLSA(s) (201909-05), 1 atom(s) (net-libs/webkit-gtk); latest impact normal. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2019-8518
redhat medium — https://access.redhat.com/security/cve/CVE-2019-8518
suse medium CVE-2019-8518 severity moderate: SUSE including 281 source package names (SDL-1.2.15-35.el8, SDL-devel-1.2.15-35.el8, …), 363 product×package rows across 39 product lines (SUSE Liberty Linux 8, SUSE Linux Enterprise Desktop 12 SP3, … (39 product lines)): Fixed 299, Known Not Affected 64. https://www.suse.com/security/cve/CVE-2019-8518/
ubuntu medium CVE-2019-8518 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-2019-8518

Affected software / configurations for CVE-2019-8518

Vendor Product Version Raw CPE
apple icloud < 7.11 cpe:2.3:a:apple:icloud:*:*:*:*:*:windows:*:*
apple itunes < 12.9.4 cpe:2.3:a:apple:itunes:*:*:*:*:*:windows:*:*
apple safari < 12.1 cpe:2.3:a:apple:safari:*:*:*:*:*:*:*:*
apple iphone_os < 12.2 cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
apple tvos < 12.2 cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*
apple watchos < 5.2 cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*

References for CVE-2019-8518

cvelogic Threat Intelligence