CVE-2023-41991—Apple Multiple Products Improper Certificate Validation Vulnerability

Vulnerability Name

Apple Multiple Products Improper Certificate Validation Vulnerability

Description

Apple iOS, iPadOS, macOS, and watchOS contain an improper certificate validation vulnerability that can allow a malicious app to bypass signature validation.

Known To Be Used in Ransomware Campaigns?

Ransomware Status:

Unknown

Action

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Additional Notes

• https://support.apple.com/en-us/HT213926, https://support.apple.com/en-us/HT213927, https://support.apple.com/en-us/HT213928, https://support.apple.com/en-us/HT213929, https://support.apple.com/en-us/HT213931
• https://nvd.nist.gov/vuln/detail/CVE-2023-41991

Related News Articles

• Apple fixes WebKit zero-day exploited in ‘extremely sophisticated’ attacksMarch 11, 2025
• Apple fixes zero-day exploited in 'extremely sophisticated' attacksFebruary 10, 2025
• Apple fixes this year’s first actively exploited zero-day bugJanuary 27, 2025
• Apple fixes two zero-days used in attacks on Intel-based MacsNovember 19, 2024

Related Weaknesses

• CWE-295