Apple · Multiple Products · Apple Multiple Products Classic Buffer Overflow Vulnerability
Verdict
Patch on your normal cycle · actively exploited, not reachable unauthenticated from the internet, and in the upper half of CVEs by near-term exploitation probability
Added to CISA KEV 2026-03-20 · exploited in the wild for 192 days
CVSS 5.5 MEDIUM. The score is a summary; these three components are the part that decides whether something scanning the internet can use it.
| Attack vector | localrequires local access to the machine |
|---|---|
| Privileges required | lowneeds some credentials, so a fully anonymous attacker cannot reach it directly |
| User interaction | nonecan be triggered with nobody interacting with the page or request |
| Base vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
| Weakness | CWE-120 |
This describes the vulnerability. It says nothing about whether your systems run it.
EPSS puts the probability of exploitation in the next 30 days at 0.0043, which places it in the upper half of all tracked CVEs. The percentile is the more useful half: 0.18 in absolute terms sounds low until you know most of the internet-facing software in the world scores under that.
| EPSS probability | 0.0043 |
|---|---|
| Percentile | 0.343 — upper half |
| Added to KEV | 2026-03-20 |
|---|---|
| Days exploited | 192 |
| Federal remediation due | not set |
| Ransomware use | no known ransomware campaign use |
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
A memory corruption issue was addressed with improved memory handling. This issue is fixed in iOS 18.7.2 and iPadOS 18.7.2, iOS 26.1 and iPadOS 26.1, macOS Sequoia 15.7.2, macOS Sonoma 14.8.2, macOS Tahoe 26.1, tvOS 26.1, visionOS 26.1, watchOS 26.1. A malicious application may be able to cause unexpected system termination or write kernel memory.
Web application penetration testing · API security testing · every service