Apple iOS/iPadOS/macOS/tvOS/watchOS up to 26.4 Image buffer overflow

CVSS Meta Temp Score
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CTI Interest Score
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6.7$25k-$100k0.00

Summaryinfo

A vulnerability labeled as critical has been found in Apple iOS, iPadOS, macOS, tvOS and watchOS up to 26.4. Impacted is an unknown function of the component Image Handler. The manipulation results in buffer overflow. This vulnerability is reported as CVE-2026-43661. The attack can be launched remotely. No exploit exists. The affected component should be upgraded.

Detailsinfo

A vulnerability classified as critical has been found in Apple iOS, iPadOS, macOS, tvOS and watchOS up to 26.4. Affected is an unknown part of the component Image Handler. The manipulation with an unknown input leads to a buffer overflow vulnerability. CWE is classifying the issue as CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

A buffer overflow issue was addressed with improved memory handling. This issue is fixed in iOS 26.5 and iPadOS 26.5, macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.5, tvOS 26.5, watchOS 26.5. Processing a maliciously crafted image may corrupt process memory.

The advisory is available at support.apple.com. This vulnerability is traded as CVE-2026-43661 since 05/02/2026. 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. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $25k-$100k at the moment (estimation calculated on 07/28/2026).

Upgrading to version 26.5 eliminates this vulnerability.

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Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.9
VulDB Meta Temp Score: 6.7

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

ADP CISA Base Score: 7.5
ADP CISA Vector: 🔒

CVSSv2info

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

Exploitinginfo

Class: Buffer overflow
CWE: CWE-120 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

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/watchOS 26.5

Timelineinfo

05/02/2026 CVE reserved
05/12/2026 +10 days Advisory disclosed
05/12/2026 +0 days VulDB entry created
07/28/2026 +77 days VulDB entry last update

Sourcesinfo

Vendor: apple.com

Advisory: support.apple.com
Status: Confirmed

CVE: CVE-2026-43661 (🔒)
GCVE (CVE): GCVE-0-2026-43661
GCVE (VulDB): GCVE-100-362862
scip Labs: https://www.scip.ch/en/?labs.20180712

Entryinfo

Created: 05/12/2026 04:22
Updated: 07/28/2026 18:02
Changes: 05/12/2026 04:22 (57), 07/28/2026 18:02 (12)
Complete: 🔍
Cache ID: 216::103

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