Remote code execution in Apple watchOS

Published: 2021-09-13 | Updated: 2021-12-26
Risk Critical
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2021-30860
Exploitation vector Network
Public exploit This vulnerability is being exploited in the wild.
Vulnerable software
Operating systems & Components / Operating system

Vendor Apple Inc.

Security Bulletin

This security bulletin contains one critical risk vulnerability.

1) Integer overflow

EUVDB-ID: #VU56067

Risk: Critical

CVSSv3.1: 8.4 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:H/RL:O/RC:C]

CVE-ID: CVE-2021-30860

CWE-ID: CWE-190 - Integer Overflow or Wraparound

Exploit availability: Yes


The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to integer overflow when processing PDF files within the CoreGraphics component. A remote attacker can trick the victim to open a specially crafted PDF file, trigger integer overflow and execute arbitrary code on the target system.

Note, the vulnerability is being active exploited in-the-wild via the FORCEDENTRY tool against Bahraini activists.


Install update from vendor's website.

Vulnerable software versions

watchOS: 7.0 18R382, 7.0.1 18R395, 7.0.2 18R402, 7.0.3 18R410, 7.1 18R590, 7.2 18S564, 7.3 18S801, 7.3.1 18S811, 7.3.2 18S821, 7.3.3 18S830, 7.4 18T195, 7.4.1 18T201, 7.5 18T567, 7.6 18U63, 7.6.1 18U70

CPE2.3 External links

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

Yes. This vulnerability is being exploited in the wild.