SB2025110437 - Multiple vulnerabilities in Apple watchOS
Published: November 4, 2025 Updated: December 13, 2025
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 35 secuirty vulnerabilities.
1) Buffer overflow (CVE-ID: CVE-2025-43435)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary error in WebKit. A remote attacker can trick the victim into visiting a specially crafted website, trigger memory corruption and crash the browser.
2) Input validation error (CVE-ID: CVE-2025-43430)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input in WebKit. A remote attacker can trick the victim into opening a specially crafted web page and crash the browser.
3) Input validation error (CVE-ID: CVE-2025-43443)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input in WebKit. A remote attacker can trick the victim into visiting a specially crafted web page and crash the browser.
4) Input validation error (CVE-ID: CVE-2025-43440)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input in WebKit. A remote attacker can trick the victim into visiting a specially crafted web page and crash the browser.
5) Use-after-free (CVE-ID: CVE-2025-43438)
The vulnerability allows a remote attacker to perform a denial of service attack.
The vulnerability exists due to a use-after-free error in WebKit. A remote attacker can trick the victim into visiting a specially crafted website and crash the browser.
6) Use-after-free (CVE-ID: CVE-2025-43457)
The vulnerability allows a remote attacker to perform a denial of service attack.
The vulnerability exists due to a use-after-free error in WebKit. A remote attacker can trick the victim into visiting a specially crafted website and crash the browser.
7) Use after free (CVE-ID: CVE-2025-43434)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a use-after-free error in WebKit. A remote attacker can trick the victim into opening a specially crafted file and perform an unexpected Safari crash.
8) Buffer overflow (CVE-ID: CVE-2025-43425)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary error in WebKit. A remote attacker can trick the victim into visiting a specially crafted website, trigger memory corruption and crash the browser.
9) Security features bypass (CVE-ID: CVE-2025-43480)
The vulnerability allows a remote attacker to gain access to sensitive information.
The vulnerability exists due to improperly imposed security restrictions in WebKit. A remote attacker can trick the victim into visiting a specially crafted website and exfiltrate data cross-origin.
10) Buffer overflow (CVE-ID: CVE-2025-43433)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error in WebKit. A remote attacker can trick the victim into visiting a specially crafted website. trigger memory corruption and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
11) Buffer overflow (CVE-ID: CVE-2025-43431)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error in WebKit. A remote attacker can trick the victim into visiting a specially crafted website. trigger memory corruption and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
12) Use-after-free (CVE-ID: CVE-2025-43432)
The vulnerability allows a remote attacker to perform a denial of service attack.
The vulnerability exists due to a use-after-free error in WebKit. A remote attacker can trick the victim into visiting a specially crafted website and crash the browser.
13) Buffer overflow (CVE-ID: CVE-2025-43429)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary error in WebKit. A remote attacker can trick the victim into visiting a specially crafted website, trigger memory corruption and crash the browser.
14) Improper access control (CVE-ID: CVE-2025-43392)
The vulnerability allows a remote attacker to gain unauthorized access to sensitive information.
The vulnerability exists due to incorrect handling of cached data in WebKit Canvas. A remote attacker can trick the victim into visiting a specially crafted website and exfiltrate data cross-origin.
15) Input validation error (CVE-ID: CVE-2025-43458)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input in WebKit. A remote attacker can trick the victim into opening a specially crafted web page and crash the browser.
16) Improper input validation (CVE-ID: CVE-2025-43500)
The vulnerability allows a local application to gain access to sensitive information.
The vulnerability exists due to insufficient input validation in Sandbox Profiles. A local application can access sensitive user data.
17) Improper access control (CVE-ID: CVE-2025-43455)
The vulnerability allows a local application to gain access to sensitive information.
The vulnerability exists due to improper access restrictions in Apple Account. A local application can take a screenshot of sensitive information in embedded views.
18) Information disclosure (CVE-ID: CVE-2025-43507)
The vulnerability allows a local application to fingerprint the user.
The vulnerability exists due to excessive data output by the Find My application. A local application can fingerprint the user.
19) Memory corruption (CVE-ID: CVE-2025-43447)
The vulnerability allows a local application to escalate privileges on the system.
The vulnerability exists due to a boundary error in Apple Neural Engine. A local application can cause unexpected system termination or corrupt kernel memory.
20) Memory corruption (CVE-ID: CVE-2025-43462)
The vulnerability allows a local application to escalate privileges on the system.
The vulnerability exists due to a boundary error in Apple Neural Engine. A local application can cause unexpected system termination or corrupt kernel memory.
21) Improper link resolution before file access ('link following') (CVE-ID: CVE-2025-43379)
The vulnerability allows a local application to gain access to sensitive information.
The vulnerability exists due to insecure symbolic link following in AppleMobileFileIntegrity. A local application can access protected user data.
22) Improper link resolution before file access ('link following') (CVE-ID: CVE-2025-43448)
The vulnerability allows a local application to escalate privileges on the system.
The vulnerability exists due to insecure symbolic link following in CloudKit. A local application can break out of its sandbox.
23) Improper access control (CVE-ID: CVE-2025-43436)
The vulnerability allows a local application to gain access to sensitive information.
The vulnerability exists due to improper access restrictions in CoreServices. A local application can enumerate installed apps on the device.
24) Improper input validation (CVE-ID: CVE-2025-43445)
The vulnerability allows a local application to escalate privileges on the system.
The vulnerability exists due to insufficient input validation in CoreText. A local application can trick the victim into opening a specially crafted file and perform unexpected app termination or corrupt process memory.
25) Out-of-bounds write (CVE-ID: CVE-2025-43400)
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a boundary error within the FontParser component. A remote attacker can create a specially crafted file, trick the victim into opening it, trigger an out-of-bounds write and execute arbitrary code on the target system.
26) Spoofing attack (CVE-ID: CVE-2025-43503)
The vulnerability allows a remote attacker to perform spoofing attack.
The vulnerability exists due to incorrect processing of user-supplied data. A remote attacker can trick the victim into visiting a specially crafted website and spoof the user interface.
27) Information disclosure (CVE-ID: CVE-2025-43444)
The vulnerability allows a local application to gain access to sensitive information.
The vulnerability exists due to excessive data output by the Installer application. A malicious local application can fingerprint the user.
28) Memory corruption (CVE-ID: CVE-2025-43398)
The vulnerability allows a local application to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary error in Kernel. A local application can cause unexpected system termination.
29) Improper access control (CVE-ID: CVE-2025-43413)
The vulnerability allows a local application to escalate privileges on the system.
The vulnerability exists due to improper access restrictions in libxpc. A local application can observe system-wide network connections.
30) Security features bypass (CVE-ID: CVE-2025-43496)
The vulnerability allows a remote attacker to gain access to sensitive information.
The vulnerability exists due to a missing logic in Mail Drafts when working with email messages. A remote attacker can force the application to load remote content even when the 'Load Remote Images' setting is turned off.
31) Improper input validation (CVE-ID: CVE-2025-43294)
The vulnerability allows a local application to gain access to sensitive information.
The vulnerability exists due to insufficient input validation in MallocStackLogging. A local application can access sensitive user data.
32) State Issues (CVE-ID: CVE-2025-43459)
The vulnerability allows an attacker to gain access to sensitive information.
The vulnerability exists due to improper state management in the Phone component. An attacker with physical access to a locked Apple Watch may be able to view Live Voicemail.
33) Buffer overflow (CVE-ID: CVE-2025-43510)
The vulnerability allows a local application to escalate privileges on the system.
The vulnerability exists due to a boundary error within the OS kernel. A local application can trigger memory corruption and cause unexpected changes in memory shared between processes.
34) Buffer overflow (CVE-ID: CVE-2025-43520)
The vulnerability allows a local application to escalate privileges on the system.
The vulnerability exists due to a boundary error within the OS kernel. A local application can trigger memory corruption and execute arbitrary code on the target system.
35) Input validation error (CVE-ID: CVE-2025-43494)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of email headers in the Mail app. A remote attacker can send a specially crafted email to the victim and cause a persistent denial-of-service.
Remediation
Install update from vendor's website.