Resource exhaustion in Apple iOS And Ipados
CVE-2026-28872
A resource exhaustion issue was addressed with improved input validation. This issue is fixed in iOS 18.7.9 and iPadOS 18.7.9, iOS 26.4 and iPadOS 26.4. A remote attacker may be able to cause a denial-of-service.
Vulnerability class: DoS (Denial of Service)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.005 (43.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 43rd percentile — 43.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: +0.001
Affected products
- Apple iOS And Ipados — versions 0
- Apple Ipados
- Apple Iphone OS
Weakness classification (CWE)
References
- support.apple.com/en-us/126792 (Release Notes, Vendor Advisory)
- support.apple.com/en-us/127111 (Release Notes, Vendor Advisory)
Frequently asked questions
- What is CVE-2026-28872?
- CVE-2026-28872 is a high-severity vulnerability in Apple iOS And Ipados, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2026-05-11.
- How severe is CVE-2026-28872?
- High severity. CVSS v3 base score is 7.5 out of 10.