SB2025110420 - Multiple vulnerabilities in Apple Safari
Published: November 4, 2025 Updated: November 24, 2025
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 21 secuirty vulnerabilities.
1) 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.
2) 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.
3) Buffer overflow (CVE-ID: CVE-2025-43421)
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.
4) 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.
5) 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.
6) 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.
7) 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.
8) 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.
9) 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.
10) 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.
11) 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.
12) 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.
13) Buffer overflow (CVE-ID: CVE-2025-43441)
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) 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.
15) State issues (CVE-ID: CVE-2025-43427)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a state management issue in WebKit. A remote attacker can trick the victim into opening a specially crafted file and perform an unexpected process crash.
16) 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.
17) 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.
18) 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.
19) Spoofing attack (CVE-ID: CVE-2025-43493)
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 clicking on a specially crafted URL and spoof the browser's address bar.
20) 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.
21) Security features bypass (CVE-ID: CVE-2025-43502)
The vulnerability allows a local application to bypass certain Privacy preferences.
The vulnerability exists due to an error in Safari. A local application can bypass certain Privacy preferences.
Remediation
Install update from vendor's website.