Apple macOS up to 14.8.8/15.7.8/26.6.0 Screen Sharing improper authentication

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.5$0-$5k2.14

Summaryinfo

A vulnerability was found in Apple macOS up to 14.8.8/15.7.8/26.6.0. It has been declared as critical. Affected by this issue is some unknown functionality of the component Screen Sharing. Such manipulation leads to improper authentication. This vulnerability is uniquely identified as CVE-2026-65400. The attack can be launched remotely. No exploit exists.

Detailsinfo

A vulnerability was found in Apple macOS up to 14.8.8/15.7.8/26.6.0. It has been rated as critical. Affected by this issue is some unknown processing of the component Screen Sharing. The manipulation with an unknown input leads to a improper authentication vulnerability. Using CWE to declare the problem leads to CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. Impacted is confidentiality, integrity, and availability. CVE summarizes:

An authentication issue was addressed with improved state management. This issue is fixed in macOS Sequoia 15.7.9, macOS Sonoma 14.8.9, macOS Tahoe 26.6.1. An attacker on the network may be able to authenticate to Screen Sharing without valid credentials.

The advisory is available at support.apple.com. This vulnerability is handled as CVE-2026-65400 since 07/22/2026. The exploitation is known to be easy. The attack may be launched remotely. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 08/07/2026).

Upgrading to version 14.8.9, 15.7.9 or 26.6.1 eliminates this vulnerability.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.7
VulDB Meta Temp Score: 6.5

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

ADP CISA Base Score: 7.1
ADP CISA Vector: 🔒

CVSSv2info

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

Exploitinginfo

Class: Improper authentication
CWE: CWE-287
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
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: macOS 14.8.9/15.7.9/26.6.1

Timelineinfo

07/22/2026 CVE reserved
08/07/2026 +16 days Advisory disclosed
08/07/2026 +0 days VulDB entry created
08/07/2026 +0 days VulDB entry last update

Sourcesinfo

Vendor: apple.com

Advisory: support.apple.com
Status: Confirmed

CVE: CVE-2026-65400 (🔒)
GCVE (CVE): GCVE-0-2026-65400
GCVE (VulDB): GCVE-100-386882
scip Labs: https://www.scip.ch/en/?labs.20180712

Entryinfo

Created: 08/07/2026 02:47
Changes: 08/07/2026 02:47 (65)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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