Apple macOS Image File out-of-bounds write

CVSS Meta Temp Score
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CTI Interest Score
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6.0$0-$5k0.00

Summaryinfo

A vulnerability classified as critical was found in Apple macOS. Affected is an unknown function of the component Image File Handler. The manipulation results in out-of-bounds write. This vulnerability is known as CVE-2025-43300. It is possible to launch the attack remotely. Furthermore, an exploit is available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability, which was classified as critical, was found in Apple macOS (version unknown). Affected is an unknown function of the component Image File Handler. The manipulation with an unknown input leads to a out-of-bounds write vulnerability. CWE is classifying the issue as CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 15.8.5 and iPadOS 15.8.5, iOS 16.7.12 and iPadOS 16.7.12. Processing a malicious image file may result in memory corruption. Apple is aware of a report that this issue may have been exploited in an extremely sophisticated attack against specific targeted individuals.

The advisory is shared for download at support.apple.com. This vulnerability is traded as CVE-2025-43300 since 04/16/2025. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Successful exploitation requires user interaction by the victim. Technical details are unknown but an exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 11/07/2025).

It is declared as attacked. The vulnerability scanner Nessus provides a plugin with the ID 265762 (WhatsApp Desktop for Mac 2.22.25.2 < 2.25.21.78 Incorrect Authorization (August Update)), which helps to determine the existence of the flaw in a target environment. This issue was added on 08/21/2025 to the CISA Known Exploited Vulnerabilities Catalog with a due date of 09/11/2025:

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the databases at Zero-Day.cz (1022), Tenable (265762), EUVD (EUVD-2025-25409) and CERT Bund (WID-SEC-2025-1876). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Affected

  • Apple iOS
  • Apple iPadOS
  • Apple macOS

Productinfo

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Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.0

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
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: Out-of-bounds write
CWE: CWE-787 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Attacked

EPSS Score: 🔒
EPSS Percentile: 🔒

KEV Added: 🔒
KEV Due: 🔒
KEV Remediation: 🔒
KEV Ransomware: 🔒
KEV Notice: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 265762
Nessus Name: WhatsApp Desktop for Mac 2.22.25.2 < 2.25.21.78 Incorrect Authorization (August Update)

Zero-Day.cz: 🔒

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Timelineinfo

04/16/2025 CVE reserved
08/21/2025 +127 days Advisory disclosed
08/21/2025 +0 days VulDB entry created
11/07/2025 +78 days VulDB entry last update

Sourcesinfo

Vendor: apple.com

Advisory: support.apple.com
Status: Confirmed

CVE: CVE-2025-43300 (🔒)
GCVE (CVE): GCVE-0-2025-43300
GCVE (VulDB): GCVE-100-320880
EUVD: 🔒
CERT Bund: WID-SEC-2025-1876 - Apple iOS, iPadOS und macOS: Schwachstelle erm&ouml;glicht Codeausf&uuml;hrung

scip Labs: https://www.scip.ch/en/?labs.20180712

Entryinfo

Created: 08/21/2025 07:07
Updated: 11/07/2025 15:18
Changes: 08/21/2025 07:07 (55), 08/21/2025 13:47 (1), 08/21/2025 15:42 (1), 08/21/2025 22:08 (13), 08/25/2025 08:20 (7), 08/28/2025 08:55 (2), 09/24/2025 17:01 (2), 11/07/2025 15:18 (1)
Complete: 🔍
Cache ID: 216::103

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

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