Apple iOS/iPadOS/macOS/visionOS/watchOS up to 18.7.6/26.3 Keychain Item permission

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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3.2$5k-$25k2.35

Summaryinfo

A vulnerability classified as critical was found in Apple iOS, iPadOS, macOS, visionOS and watchOS up to 18.7.6/26.3. Affected by this vulnerability is an unknown functionality of the component Keychain Item Handler. The manipulation results in permission. This vulnerability was named CVE-2026-28864. The attack needs to be approached locally. There is no available exploit. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Apple iOS, iPadOS, macOS, visionOS and watchOS up to 18.7.6/26.3. It has been classified as problematic. Affected is an unknown function of the component Keychain Item Handler. The manipulation with an unknown input leads to a permission vulnerability. CWE is classifying the issue as CWE-275. This is going to have an impact on confidentiality. CVE summarizes:

This issue was addressed with improved permissions checking. 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 Sonoma 14.8.5, macOS Tahoe 26.4, visionOS 26.4, watchOS 26.4. A local attacker may gain access to user's Keychain items.

The advisory is shared for download at support.apple.com. This vulnerability is traded as CVE-2026-28864 since 03/03/2026. The exploitability is told to be easy. The attack needs to be approached locally. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $5k-$25k (estimation calculated on 03/29/2026). The MITRE ATT&CK project declares the attack technique as T1222.

Upgrading to version 18.7.7 or 26.4 eliminates this vulnerability.

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.3
VulDB Meta Temp Score: 3.2

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

ADP CISA Base Score: 3.3
ADP CISA Vector: 🔒

CVSSv2info

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

Exploitinginfo

Class: Permission
CWE: CWE-275 / 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/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-2026-28864 (🔒)
GCVE (CVE): GCVE-0-2026-28864
GCVE (VulDB): GCVE-100-352968
scip Labs: https://www.scip.ch/en/?labs.20180712

Entryinfo

Created: 03/25/2026 07:56
Updated: 03/29/2026 20:44
Changes: 03/25/2026 07:56 (57), 03/29/2026 20:44 (10)
Complete: 🔍
Cache ID: 216:C19:103

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