CVE-2025-24201
Published: March 13, 2025
Official Description
Apple iOS, iPadOS, macOS, and other Apple products contain an out-of-bounds write vulnerability in WebKit that may allow maliciously crafted web content to break out of Web Content sandbox. This vulnerability could impact HTML parsers that use WebKit, including but not limited to Apple Safari and non-Apple products which rely on WebKit for HTML processing.
CISA KEV Advisory
Apple Multiple Products WebKit Out-of-Bounds Write Vulnerability
Apple iOS, iPadOS, macOS, and other Apple products contain an out-of-bounds write vulnerability in WebKit that may allow maliciously crafted web content to break out of Web Content sandbox. This vulnerability could impact HTML parsers that use WebKit, including but not limited to Apple Safari and non-Apple products which rely on WebKit for HTML processing.
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
This high-severity out-of-bounds write vulnerability in WebKit, affecting Apple iOS, iPadOS, macOS, and other Apple products, could allow maliciously crafted web content to escape the Web Content sandbox. This can lead to broader system compromise. The confirmed exploitation by CISA (is_in_kev: true) makes this a critical vulnerability.
Active exploitation of this vulnerability has been observed in the wild. This indicates that attackers are actively leveraging this flaw through malicious web content.
Apply the latest security updates for Apple iOS, iPadOS, macOS, and Safari. Users should ensure their Apple devices and browsers are updated to the most recent secure versions.
Technical Analysis
CVE-2025-24201 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-2025-24201 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 (5)
Quick Facts
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2025-24201 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