This document describes the security content of watchOS 26.1.
For our customers' protection, Apple doesn't disclose, discuss, or confirm security issues until an investigation has occurred and patches or releases are available. Recent releases are listed on the Apple security releases page.
Apple security documents reference vulnerabilities by CVE-ID when possible.
For more information about security, see the Apple Product Security page.
Released November 3, 2025
Available for: Apple Watch Series 6 and later
Impact: A malicious app may be able to take a screenshot of sensitive information in embedded views
Description: A privacy issue was addressed with improved checks.
CVE-2025-43455: Ron Masas of BreakPoint.SH, Pinak Oza
Available for: Apple Watch Series 9 and later, Apple Watch SE 2nd generation, Apple Watch Ultra (all models)
Impact: An app may be able to cause unexpected system termination or corrupt kernel memory
Description: The issue was addressed with improved memory handling.
CVE-2025-43447: an anonymous researcher
CVE-2025-43462: an anonymous researcher
Available for: Apple Watch Series 6 and later
Impact: An app may be able to access protected user data
Description: This issue was addressed with improved validation of symlinks.
CVE-2025-43379: Gergely Kalman (@gergely_kalman)
Available for: Apple Watch Series 6 and later
Impact: An app may be able to break out of its sandbox
Description: This issue was addressed with improved validation of symlinks.
CVE-2025-43448: Hikerell (Loadshine Lab)
Available for: Apple Watch Series 6 and later
Impact: An app may be able to enumerate a user's installed apps
Description: A permissions issue was addressed with additional restrictions.
CVE-2025-43436: Zhongcheng Li from IES Red Team of ByteDance
Available for: Apple Watch Series 6 and later
Impact: Processing a maliciously crafted media file may lead to unexpected app termination or corrupt process memory
Description: An out-of-bounds read was addressed with improved input validation.
CVE-2025-43445: Hossein Lotfi (@hosselot) of Trend Micro Zero Day Initiative
Available for: Apple Watch Series 6 and later
Impact: An app may be able to fingerprint the user
Description: A privacy issue was addressed by moving sensitive data.
CVE-2025-43507: iisBuri
Available for: Apple Watch Series 6 and later
Impact: Processing a maliciously crafted font may lead to unexpected app termination or corrupt process memory
Description: An out-of-bounds write issue was addressed with improved bounds checking.
CVE-2025-43400: Apple
Available for: Apple Watch Series 6 and later
Impact: An app may be able to fingerprint the user
Description: A permissions issue was addressed with additional restrictions.
CVE-2025-43444: Zhongcheng Li from IES Red Team of ByteDance
Available for: Apple Watch Series 6 and later
Impact: An app may be able to cause unexpected system termination
Description: The issue was addressed with improved memory handling.
CVE-2025-43398: Cristian Dinca (icmd.tech)
Available for: Apple Watch Series 6 and later
Impact: A sandboxed app may be able to observe system-wide network connections
Description: An access issue was addressed with additional sandbox restrictions.
CVE-2025-43413: Dave G. and Alex Radocea of supernetworks.org
Available for: Apple Watch Series 6 and later
Impact: Remote content may be loaded even when the 'Load Remote Images' setting is turned off
Description: The issue was addressed by adding additional logic.
CVE-2025-43496: Romain Lebesle, Himanshu Bharti @Xpl0itme From Khatima
Available for: Apple Watch Series 6 and later
Impact: An app may be able to access sensitive user data
Description: An issue existed in the handling of environment variables. This issue was addressed with improved validation.
CVE-2025-43294: Gergely Kalman (@gergely_kalman)
Available for: Apple Watch Series 6 and later
Impact: An attacker with physical access to a locked Apple Watch may be able to view Live Voicemail
Description: An authentication issue was addressed with improved state management.
CVE-2025-43459: Dalibor Milanovic
Available for: Apple Watch Series 6 and later
Impact: Visiting a malicious website may lead to user interface spoofing
Description: An inconsistent user interface issue was addressed with improved state management.
CVE-2025-43503: @RenwaX23
Available for: Apple Watch Series 6 and later
Impact: An app may be able to access sensitive user data
Description: A privacy issue was addressed with improved handling of user preferences.
CVE-2025-43500: Stanislav Jelezoglo
Available for: Apple Watch Series 6 and later
Impact: A malicious website may exfiltrate data cross-origin
Description: The issue was addressed with improved checks.
WebKit Bugzilla: 276208
CVE-2025-43480: Aleksejs Popovs
Available for: Apple Watch Series 6 and later
Impact: Processing maliciously crafted web content may lead to an unexpected process crash
Description: This issue was addressed through improved state management.
WebKit Bugzilla: 296693
CVE-2025-43458: Phil Beauvoir
WebKit Bugzilla: 298196
CVE-2025-43430: Google Big Sleep
Available for: Apple Watch Series 6 and later
Impact: Processing maliciously crafted web content may lead to an unexpected process crash
Description: This issue was addressed with improved checks.
WebKit Bugzilla: 299843
CVE-2025-43443: an anonymous researcher
Available for: Apple Watch Series 6 and later
Impact: Processing maliciously crafted web content may lead to an unexpected process crash
Description: This issue was addressed with improved checks
WebKit Bugzilla: 298126
CVE-2025-43440: Nan Wang (@eternalsakura13)
Available for: Apple Watch Series 6 and later
Impact: Processing maliciously crafted web content may lead to an unexpected Safari crash
Description: A use-after-free issue was addressed with improved memory management.
WebKit Bugzilla: 297662
CVE-2025-43438: shandikri working with Trend Micro Zero Day Initiative
WebKit Bugzilla: 298606
CVE-2025-43457: Gary Kwong, Hossein Lotfi (@hosselot) of Trend Micro Zero Day Initiative
WebKit Bugzilla: 297958
CVE-2025-43434: Google Big Sleep
Available for: Apple Watch Series 6 and later
Impact: Processing maliciously crafted web content may lead to an unexpected process crash
Description: The issue was addressed with improved memory handling.
WebKit Bugzilla: 299391
CVE-2025-43435: Justin Cohen of Google
WebKit Bugzilla: 298851
CVE-2025-43425: an anonymous researcher
Available for: Apple Watch Series 6 and later
Impact: Processing maliciously crafted web content may lead to memory corruption
Description: The issue was addressed with improved memory handling.
WebKit Bugzilla: 298093
CVE-2025-43433: Google Big Sleep
WebKit Bugzilla: 298194
CVE-2025-43431: Google Big Sleep
Available for: Apple Watch Series 6 and later
Impact: Processing maliciously crafted web content may lead to an unexpected process crash
Description: A use-after-free issue was addressed with improved memory management.
WebKit Bugzilla: 299313
CVE-2025-43432: Hossein Lotfi (@hosselot) of Trend Micro Zero Day Initiative
Available for: Apple Watch Series 6 and later
Impact: Processing maliciously crafted web content may lead to an unexpected process crash
Description: A buffer overflow was addressed with improved bounds checking.
WebKit Bugzilla: 298232
CVE-2025-43429: Google Big Sleep
Available for: Apple Watch Series 6 and later
Impact: A website may exfiltrate image data cross-origin
Description: The issue was addressed with improved handling of caches.
WebKit Bugzilla: 297566
CVE-2025-43392: Tom Van Goethem
We would like to acknowledge an anonymous researcher for their assistance.
We would like to acknowledge Bubble Zhang for their assistance.
We would like to acknowledge Barath Stalin K for their assistance.
We would like to acknowledge BanKai, Benjamin Hornbeck, Chi Yuan Chang of ZUSO ART and taikosoup, Ryan May, Andrew James Gonzalez, an anonymous researcher for their assistance.
We would like to acknowledge Enis Maholli (enismaholli.com), Google Big Sleep for their assistance.