Known exploited · Apple
CVE-2023-41990: Apple Multiple Products Code Execution Vulnerability
What it is
Apple iOS, iPadOS, macOS, tvOS, and watchOS contain an unspecified vulnerability that allows for code execution when processing a font file.
- Vendor
- Apple
- Product
- Multiple Products
- Added to KEV
- January 8, 2024
- CISA due date
- January 29, 2024
- Ransomware use
- Unknown
- Weakness
- Not mapped by CISA
What CISA requires
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Forensic triage
No
What to do now
- Find every instance of Multiple Products you run, including the forgotten ones, and check its version against the vendor advisory.
- Apply the vendor's fix or mitigation, before January 29, 2024 if you are bound by CISA's deadline, sooner if it faces the internet.
- Assume it was tried against you already: look for signs of exploitation from the date it was added, not from the day you patched.
References
- https://support.apple.com/en-us/HT213599, https://support.apple.com/en-us/HT213601, https://support.apple.com/en-us/HT213605, https://support.apple.com/en-us/HT213606, https://support.apple.com/en-us/HT213842, https://support.apple.com/en-us/HT213844, https://support.apple.com/en-us/HT213845
- https://nvd.nist.gov/vuln/detail/CVE-2023-41990
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Start freeSource: CISA Known Exploited Vulnerabilities Catalog (public domain), catalog version 2026.10.01.