Medium severity · published May 11, 2026
CVE-2026-28967
A denial-of-service issue was addressed with improved input validation
4.9
CVSS
0.3%
EPSS
No
On KEV
Description
A denial-of-service issue was addressed with improved input validation. This issue is fixed in iOS 18.7.7 and iPadOS 18.7.7, iOS 26.4 and iPadOS 26.4. An attacker in a privileged network position may be able to cause a denial-of-service.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 25% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
IO
iOS · Apple
before 18.7.7; 26.0 before 26.4 · source: NVD
IA
iOS and iPadOS · Apple
before 18.7.7; before 26.4 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-28967
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-28967
Release Notes
https://support.apple.com/en-us/126792
Release Notes
https://support.apple.com/en-us/126793
More from iOS
10.0
CVE-2025-43300
Apple iOS, iPadOS, and macOS Out-of-Bounds Write Vulnerability
10.0
CVE-2025-24201
Apple Multiple Products WebKit Out-of-Bounds Write Vulnerability
10.0
CVE-2025-24085
Apple Multiple Products Use-After-Free Vulnerability
9.8
CVE-2025-31200
Apple Multiple Products Memory Corruption Vulnerability
9.8
CVE-2025-31201
Apple Multiple Products Arbitrary Read and Write Vulnerability