Apple iOS/iPadOS/macOS/tvOS/visionOS/watchOS up to 18.7.6/26.3 App denial of service

| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 5.4 | $0-$5k | 0.00 |
Summary
A vulnerability has been found in Apple iOS, iPadOS, macOS, tvOS, visionOS and watchOS up to 18.7.6/26.3 and classified as problematic. This affects an unknown function of the component App. The manipulation leads to denial of service. This vulnerability is listed as CVE-2026-28852. The attack must be carried out locally. There is no available exploit. The affected component should be upgraded.
Details
A vulnerability was found in Apple iOS, iPadOS, macOS, tvOS, visionOS and watchOS up to 18.7.6/26.3. It has been rated as problematic. This issue affects an unknown part of the component App. The manipulation with an unknown input leads to a denial of service vulnerability. Using CWE to declare the problem leads to CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. Impacted is availability. The summary by CVE is:
A stack overflow 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, macOS Sequoia 15.7.5, macOS Tahoe 26.4, tvOS 26.4, visionOS 26.4, watchOS 26.4. An app may be able to cause a denial-of-service.
It is possible to read the advisory at support.apple.com. The identification of this vulnerability is CVE-2026-28852 since 03/03/2026. The exploitation is known to be easy. Attacking locally is a requirement. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 03/29/2026).
Upgrading to version 18.7.7 or 26.4 eliminates this vulnerability.
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Product
Type
Vendor
Name
Version
License
Website
- Vendor: https://www.apple.com/
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔒VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 5.5VulDB Meta Temp Score: 5.4
VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔒
VulDB Reliability: 🔍
ADP CISA Base Score: 5.5
ADP CISA Vector: 🔒
CVSSv2
| AV | AC | Au | C | I | A |
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| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
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| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍
Exploiting
Class: Denial of serviceCWE: CWE-404
CAPEC: 🔒
ATT&CK: 🔒
Physical: Partially
Local: Yes
Remote: No
Availability: 🔒
Status: Not defined
EPSS Score: 🔒
EPSS Percentile: 🔒
Price Prediction: 🔍
Current Price Estimation: 🔒
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Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔒
Upgrade: iOS/iPadOS/macOS/tvOS/visionOS/watchOS 18.7.7/26.4
Timeline
03/03/2026 CVE reserved03/25/2026 Advisory disclosed
03/25/2026 VulDB entry created
03/29/2026 VulDB entry last update
Sources
Vendor: apple.comAdvisory: support.apple.com
Status: Confirmed
CVE: CVE-2026-28852 (🔒)
GCVE (CVE): GCVE-0-2026-28852
GCVE (VulDB): GCVE-100-352943
scip Labs: https://www.scip.ch/en/?labs.20180712
Entry
Created: 03/25/2026 07:47Updated: 03/29/2026 20:44
Changes: 03/25/2026 07:47 (57), 03/29/2026 20:44 (11)
Complete: 🔍
Cache ID: 216:414:103
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