CVE-2022-48503
Published: October 20, 2025
Official Description
Apple macOS, iOS, tvOS, Safari, and watchOS contain an unspecified vulnerability in JavaScriptCore that when processing web content may lead to arbitrary code execution. The impacted product could be end-of-life (EoL) and/or end-of-service (EoS). Users should discontinue product utilization.
CISA KEV Advisory
Apple Multiple Products Unspecified Vulnerability
Apple macOS, iOS, tvOS, Safari, and watchOS contain an unspecified vulnerability in JavaScriptCore that when processing web content may lead to arbitrary code execution. The impacted product could be end-of-life (EoL) and/or end-of-service (EoS). Users should discontinue product utilization.
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Risk Analysis
Apple macOS, iOS, tvOS, Safari, and watchOS contain an unspecified vulnerability in JavaScriptCore that could lead to arbitrary code execution when processing web content. This is a high-severity issue, and its inclusion in CISA's KEV catalog confirms active exploitation, making it an urgent concern despite a low EPSS score of 0.00325.
This vulnerability has been actively exploited in the wild, as confirmed by its presence in CISA's KEV catalog. It is remotely exploitable via web content.
Users should discontinue product utilization if the affected Apple products are end-of-life or end-of-service. Otherwise, update to the latest available versions.
Technical Analysis
CVE-2022-48503 requires local access, meaning attackers must already have a foothold on the target system.
Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
CISA has added CVE-2022-48503 to the Known Exploited Vulnerabilities (KEV) catalog, confirming active exploitation in the wild. U.S. federal agencies are required to patch this within the mandated timeframe, and all organizations should treat remediation as urgent.
Affected Vendors & Products
Exploit & PoC Resources
All References (6)
Quick Facts
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2022-48503 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
- !CISA KEV: Federal agencies must patch per BOD 22-01 timeline
- !Active exploitation confirmed — treat as P1