Buffer overflow in Apple iOS And Ipados
CVE-2025-43209
An out-of-bounds access issue was addressed with improved bounds checking. This issue is fixed in iOS 18.6 and iPadOS 18.6, iPadOS 17.7.9, macOS Sequoia 15.6, macOS Sonoma 14.7.7, macOS Ventura 13.7.7, tvOS 18.6, visionOS 2.6, watchOS 11.6. Processing maliciously crafted web content may lead to an unexpected Safari crash.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.009 (58.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 58th percentile — 58.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: +0.000
Affected products
- Apple iOS And Ipados — versions 0
- Apple Ipados — versions 0
- Apple Iphone OS
- Apple macOS — versions 0
- Apple tvOS — versions 0
- Apple Visionos — versions 0
- Apple watchOS — versions 0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- support.apple.com/en-us/124147 (Release Notes, Vendor Advisory)
- support.apple.com/en-us/124148 (Release Notes, Vendor Advisory)
- support.apple.com/en-us/124149 (Release Notes, Vendor Advisory)
- support.apple.com/en-us/124150 (Release Notes, Vendor Advisory)
- support.apple.com/en-us/124151 (Release Notes, Vendor Advisory)
- support.apple.com/en-us/124153 (Release Notes, Vendor Advisory)
- support.apple.com/en-us/124154 (Release Notes, Vendor Advisory)
- support.apple.com/en-us/124155 (Release Notes, Vendor Advisory)
- af854a3a-2127-422b-91ae-364da2661108
- af854a3a-2127-422b-91ae-364da2661108
Frequently asked questions
- What is CVE-2025-43209?
- CVE-2025-43209 is a critical-severity vulnerability in Apple iOS And Ipados, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2025-07-30.
- How severe is CVE-2025-43209?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2025-43209 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.