A buffer overflow issue was addressed with improved memory handling. (CVE-2026-43661)
CVE-2026-43661 is a high severity buffer overflow vulnerability affecting Apple operating systems including iOS, iPadOS, macOS Tahoe, tvOS, and watchOS. The issue arises from improper memory handling when processing maliciously crafted images, potentially leading to process memory corruption and denial of service. This vulnerability has been addressed in version 26.5 of the affected OSes.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-43661) is a buffer overflow caused by inadequate memory handling during image processing on Apple platforms. Exploiting this flaw could corrupt process memory, resulting in denial of service. The issue affects multiple Apple OSes and was fixed in version 26.5 releases of iOS, iPadOS, macOS Tahoe, tvOS, and watchOS.
Potential Impact
Successful exploitation can cause process memory corruption leading to denial of service (availability impact). There is no indication of confidentiality or integrity impact. No known exploits are reported in the wild at this time.
Mitigation Recommendations
Apply the official fixes by updating to iOS 26.5, iPadOS 26.5, macOS Tahoe 26.5, tvOS 26.5, and watchOS 26.5. These versions contain improved memory handling that addresses the buffer overflow vulnerability.
A buffer overflow issue was addressed with improved memory handling. (CVE-2026-43661)
Description
CVE-2026-43661 is a high severity buffer overflow vulnerability affecting Apple operating systems including iOS, iPadOS, macOS Tahoe, tvOS, and watchOS. The issue arises from improper memory handling when processing maliciously crafted images, potentially leading to process memory corruption and denial of service. This vulnerability has been addressed in version 26.5 of the affected OSes.
CVSS v3.1
Score 7.5high
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-43661) is a buffer overflow caused by inadequate memory handling during image processing on Apple platforms. Exploiting this flaw could corrupt process memory, resulting in denial of service. The issue affects multiple Apple OSes and was fixed in version 26.5 releases of iOS, iPadOS, macOS Tahoe, tvOS, and watchOS.
Potential Impact
Successful exploitation can cause process memory corruption leading to denial of service (availability impact). There is no indication of confidentiality or integrity impact. No known exploits are reported in the wild at this time.
Mitigation Recommendations
Apply the official fixes by updating to iOS 26.5, iPadOS 26.5, macOS Tahoe 26.5, tvOS 26.5, and watchOS 26.5. These versions contain improved memory handling that addresses the buffer overflow vulnerability.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-wp6x-485c-jcgc
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-43661"]
- Database Specific Severity
- HIGH
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6a83aa87bf8831d539e33f08
Added to database: 08/18/2026, 00:42:47 UTC
Last enriched: 09/15/2026, 02:26:15 UTC
Last updated: 10/02/2026, 02:46:04 UTC
Views: 94
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