CVE-2023-41990: in the CISA KEV catalogue
Apple Multiple Products Code Execution Vulnerability. CISA added CVE-2023-41990 to the Known Exploited Vulnerabilities catalogue on 2024-01-08 with a default due date of 2024-01-29. Known ransomware campaign use: Unknown. Forensic triage flag: No.
Apple iOS, iPadOS, macOS, tvOS, and watchOS contain an unspecified vulnerability that allows for code execution when processing a font file. (CISA description)
- Vendor / product
- Apple Multiple Products
- CWE
- Not listed
- CISA required action
- Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
- EPSS
- 1.4%, percentile 72 (scored 2026-11-03)
EPSS puts about 1.4 in 100 odds (1.4%) on exploitation activity being observed in the next 30 days. Its score is higher than or equal to that of 72% of scored CVEs. This is a model estimate about exploitation anywhere, not about your environment.
Vendor and reference links (from CISA)
Your own deadline under CISA BOD 26-04 depends on exposure, automatability and technical impact: work it out with the BOD 26-04 calculator.
Frequently asked questions
Is CVE-2023-41990 in the CISA KEV catalogue?
Yes. CISA added CVE-2023-41990 (Apple Multiple Products Code Execution Vulnerability) to the Known Exploited Vulnerabilities catalogue on 2024-01-08. CISA's default due date for it is 2024-01-29.
Is CVE-2023-41990 used in ransomware attacks?
CISA marks known ransomware campaign use as Unknown for CVE-2023-41990. That means CISA lacks confirmation, not that ransomware groups do not use it.
What should I do about CVE-2023-41990?
CISA's required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Sources
- CISA, Known Exploited Vulnerabilities Catalog (accessed 2026-11-03)
- FIRST, Exploit Prediction Scoring System (EPSS) (EPSS by FIRST; scores generated by Empirical Security)
- NVD record for CVE-2023-41990