Apple iOS/iPadOS/macOS/tvOS/visionOS/watchOS up to 18.7.6/26.3 App information disclosure

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
4.8$0-$5k1.17

Summaryinfo

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. The impacted element is an unknown function of the component App. This manipulation causes information disclosure. This vulnerability is registered as CVE-2026-28878. The attack needs to be launched locally. No exploit is available. Upgrading the affected component is advised.

Detailsinfo

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. Affected by this vulnerability is an unknown function of the component App. The manipulation with an unknown input leads to a information disclosure vulnerability. The CWE definition for the vulnerability is CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. As an impact it is known to affect confidentiality. The summary by CVE is:

A privacy issue was addressed by removing sensitive data. This issue is fixed in iOS 18.7.7 and iPadOS 18.7.7, iOS 26.4 and iPadOS 26.4, macOS Sonoma 14.8.5, macOS Tahoe 26.4, tvOS 26.4, visionOS 26.4, watchOS 26.4. An app may be able to enumerate a user's installed apps.

It is possible to read the advisory at support.apple.com. This vulnerability is known as CVE-2026-28878 since 03/03/2026. The exploitation appears 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). The attack technique deployed by this issue is T1592 according to MITRE ATT&CK.

Upgrading to version 18.7.7 or 26.4 eliminates this vulnerability.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.9
VulDB Meta Temp Score: 4.8

VulDB Base Score: 3.3
VulDB Temp Score: 3.2
VulDB Vector: 🔒
VulDB Reliability: 🔍

ADP CISA Base Score: 6.5
ADP CISA Vector: 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Information disclosure
CWE: CWE-200 / CWE-284 / CWE-266
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 Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: iOS/iPadOS/macOS/tvOS/visionOS/watchOS 18.7.7/26.4

Timelineinfo

03/03/2026 CVE reserved
03/25/2026 +22 days Advisory disclosed
03/25/2026 +0 days VulDB entry created
03/29/2026 +4 days VulDB entry last update

Sourcesinfo

Vendor: apple.com

Advisory: support.apple.com
Status: Confirmed

CVE: CVE-2026-28878 (🔒)
GCVE (CVE): GCVE-0-2026-28878
GCVE (VulDB): GCVE-100-352975
scip Labs: https://www.scip.ch/en/?labs.20180712

Entryinfo

Created: 03/25/2026 07:59
Updated: 03/29/2026 21:31
Changes: 03/25/2026 07:59 (57), 03/29/2026 21:31 (12)
Complete: 🔍
Cache ID: 216:6BE:103

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