Apple macOS up to 14.8.7/15.7.7 File Quarantine unnecessary privileges

CVSS Meta Temp Score
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Current Exploit Price (≈)
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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.
9.2$5k-$25k1.40

Summaryinfo

A vulnerability, which was classified as very critical, has been found in Apple macOS up to 14.8.7/15.7.7. This vulnerability affects unknown code of the component File Quarantine. The manipulation leads to unnecessary privileges. This vulnerability is listed as CVE-2026-28900. The attack may be initiated remotely. There is no available exploit.

Detailsinfo

A vulnerability, which was classified as very critical, has been found in Apple macOS up to 14.8.7/15.7.7. This issue affects an unknown functionality of the component File Quarantine. The manipulation with an unknown input leads to a unnecessary privileges vulnerability. Using CWE to declare the problem leads to CWE-250. The product performs an operation at a privilege level that is higher than the minimum level required, which creates new weaknesses or amplifies the consequences of other weaknesses. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

A file quarantine bypass was addressed with additional checks. This issue is fixed in macOS Sequoia 15.7.8, macOS Sonoma 14.8.8. A maliciously crafted ZIP archive may bypass Gatekeeper checks.

The advisory is shared at support.apple.com. The identification of this vulnerability is CVE-2026-28900 since 03/03/2026. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 07/27/2026). MITRE ATT&CK project uses the attack technique T1068 for this issue.

Upgrading to version 14.8.8 or 15.7.8 eliminates this vulnerability.

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.6
VulDB Meta Temp Score: 9.2

VulDB Base Score: 9.6
VulDB Temp Score: 9.2
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

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

Exploitinginfo

Class: Unnecessary privileges
CWE: CWE-250
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 14.8.8/15.7.8

Timelineinfo

03/03/2026 CVE reserved
07/27/2026 +145 days Advisory disclosed
07/27/2026 +0 days VulDB entry created
07/27/2026 +0 days VulDB entry last update

Sourcesinfo

Vendor: apple.com

Advisory: support.apple.com
Status: Confirmed

CVE: CVE-2026-28900 (🔒)
GCVE (CVE): GCVE-0-2026-28900
GCVE (VulDB): GCVE-100-383573
scip Labs: https://www.scip.ch/en/?labs.20180712

Entryinfo

Created: 07/27/2026 22:40
Changes: 07/27/2026 22:40 (56)
Complete: 🔍
Cache ID: 216::103

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