CVE-2019-8734

Multiple memory corruption issues were addressed with improved memory handling. This issue is...

8.8 High

Multiple memory corruption issues were addressed with improved memory handling. This issue is fixed in iOS 13, iCloud for Windows 7.14, iCloud for Windows 10.7, Safari 13, tvOS 13, watchOS 6, iTunes 12.10.1 for Windows. Processing maliciously crafted web content may lead to arbitrary code execution.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: Required

What an attacker can affect

Confidentiality: High
Integrity: High
Availability: High

Exploit likelihood

1.42%Up 1.0 points since Apr 14, 2021

What each source reports

NVD Score used 8.8

Record: CVE-2019-8734
CVSS 3.1: 8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS 2.0: 6.8 MediumAV:N/AC:M/Au:N/C:P/I:P/A:P
Weakness: CWE-787
Updated: 2026-11-02

CVE List No score

Record: CVE-2019-8734
Updated: 2026-11-02

EUVDEUVD-2019-18124 No score

Record: EUVD-2019-18124
Updated: 2026-11-03

GitHub AdvisoriesGHSA-xj76-4fp7-5jv7 No score

Multiple memory corruption issues were addressed with improved memory handling. This issue is...

Record: GHSA-xj76-4fp7-5jv7
Updated: 2026-11-02

Affected products

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases, products	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2019-8734 is a high vulnerability (CVSS 8.8) in Apple Icloud, published October 27, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.42%, the 72nd percentile. No source names a fixed version.