CVE-2026-43794
published 2026-08-17CVE-2026-43794: A memory corruption issue was addressed with improved memory handling. This issue is fixed in Safari 26.6.1, iOS 18.7.10 and iPadOS 18.7.10, iOS 26.6.1 and…
PriorityP348high8.8CVSS 3.1
AVNACLPRNUIRSUCHIHAH
EPSS
0.42%
35.5th percentile
A memory corruption issue was addressed with improved memory handling. This issue is fixed in Safari 26.6.1, iOS 18.7.10 and iPadOS 18.7.10, iOS 26.6.1 and iPadOS 26.6.1, macOS Tahoe 26.6.2, tvOS 27, visionOS 27, watchOS 27. Processing maliciously crafted web content may lead to memory corruption.
Affected
13 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| apple | ios_and_ipados | < 18.7.10 | 18.7.10 |
| apple | ios_and_ipados | < 26.6.1 | 26.6.1 |
| apple | ipados | < 18.7.10 | 18.7.10 |
| apple | ipados | >= 26.0 < 26.6.1 | 26.6.1 |
| apple | iphone_os | < 18.7.10 | 18.7.10 |
| apple | iphone_os | >= 26.0 < 26.6.1 | 26.6.1 |
| apple | macos | < 26.6.2 | 26.6.2 |
| apple | macos | >= 26.0 < 26.6.2 | 26.6.2 |
| apple | safari | < 26.6.1 | 26.6.1 |
| apple | tvos | < 27 | 27 |
| apple | visionos | < 27 | 27 |
| apple | watchos | < 27 | 27 |
| webkitgtk | webkitgtk | — | — |
CVSS provenance
nvdv3.18.8HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
vendor_redhat8.8HIGH
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GHSA
A memory corruption issue was addressed with improved memory handling.
ghsa_unreviewed·2026-08-18
CVE-2026-43794 [HIGH] CWE-119 A memory corruption issue was addressed with improved memory handling.
A memory corruption issue was addressed with improved memory handling. This issue is fixed in iOS 18.7.10 and iPadOS 18.7.10, iOS 26.6.1 and iPadOS 26.6.1, macOS Tahoe 26.6.2. Processing maliciously crafted web content may lead to memory corruption.
VulDB
Apple iOS/iPadOS/macOS prior 18.7.10/26.6.1/26.6.2 memory corruption (Nessus ID 335968)
vuldb·2026-08-17
CVE-2026-43794 Apple iOS/iPadOS/macOS prior 18.7.10/26.6.1/26.6.2 memory corruption (Nessus ID 335968)
A vulnerability, which was classified as very critical, has been found in Apple iOS, iPadOS and macOS. Affected by this issue is some unknown functionality. The manipulation leads to memory corruption.
This vulnerability is traded as CVE-2026-43794. It is possible to initiate the attack remotely. There is no exploit available.
It is advisable to upgrade the affected component.
Red Hat
webkitgtk: Processing maliciously crafted web content may lead to memory corruption
vendor_redhat·2026-08-17·CVSS 8.8
CVE-2026-43794 [HIGH] CWE-120 webkitgtk: Processing maliciously crafted web content may lead to memory corruption
webkitgtk: Processing maliciously crafted web content may lead to memory corruption
A memory corruption issue was addressed with improved memory handling. This issue is fixed in Safari 26.6.1, iOS 18.7.10 and iPadOS 18.7.10, iOS 26.6.1 and iPadOS 26.6.1, macOS Tahoe 26.6.2. Processing maliciously crafted web content may lead to memory corruption.
A flaw was found in WebKitGTK. Processing malicious web content can cause a memory corruption issue due to improper memory handling.
Statement: To exploit this issue, an attacker needs to trick a user into processing or loading malicious web content. For this reason, this flaw has been rated with an important severity.
Additionally, this issue can cause memory corruption but the possibility of remote code execution is not discarded.
Mitigation
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2026-43794 webkitgtk: Processing maliciously crafted web content may lead to memory corruption [fedora-all]
bugzilla·2026-08-27·CVSS 8.8
CVE-2026-43794 [HIGH] CVE-2026-43794 webkitgtk: Processing maliciously crafted web content may lead to memory corruption [fedora-all]
CVE-2026-43794 webkitgtk: Processing maliciously crafted web content may lead to memory corruption [fedora-all]
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.
A memory corruption issue was addressed with improved memory handling. This issue is fixed in Safari 26.6.1, iOS 18.7.10 and iPadOS 18.7.10, iOS 26.6.1 and iPadOS 26.6.1, macOS Tahoe 26.6.2. Processing maliciously crafted web content may lead to memory corruption.
Discussion:
WebGPU is unsupported
Bugzilla
CVE-2026-43794 webkitgtk: Processing maliciously crafted web content may lead to memory corruption [epel-all]
bugzilla·2026-08-27·CVSS 8.8
CVE-2026-43794 [HIGH] CVE-2026-43794 webkitgtk: Processing maliciously crafted web content may lead to memory corruption [epel-all]
CVE-2026-43794 webkitgtk: Processing maliciously crafted web content may lead to memory corruption [epel-all]
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.
A memory corruption issue was addressed with improved memory handling. This issue is fixed in Safari 26.6.1, iOS 18.7.10 and iPadOS 18.7.10, iOS 26.6.1 and iPadOS 26.6.1, macOS Tahoe 26.6.2. Processing maliciously crafted web content may lead to memory corruption.
Discussion:
WebGPU is unsupported
Bugzilla
CVE-2026-43794 webkitgtk: Processing maliciously crafted web content may lead to memory corruption
bugzilla·2026-08-26·CVSS 8.8
CVE-2026-43794 [HIGH] CVE-2026-43794 webkitgtk: Processing maliciously crafted web content may lead to memory corruption
CVE-2026-43794 webkitgtk: Processing maliciously crafted web content may lead to memory corruption
A memory corruption issue was addressed with improved memory handling. This issue is fixed in Safari 26.6.1, iOS 18.7.10 and iPadOS 18.7.10, iOS 26.6.1 and iPadOS 26.6.1, macOS Tahoe 26.6.2. Processing maliciously crafted web content may lead to memory corruption.
Sans Isc
Apple Updates Everything, (Mon, Sep 14th)
blogs_sans_isc·2026-09-14·CVSS 6.5
CVE-2022-3437 [MEDIUM] Apple Updates Everything, (Mon, Sep 14th)
Apple Updates Everything
Published: 2026-09-14. Last Updated: 2026-09-14 18:33:44 UTC
by Johannes Ullrich (Version: 1)
0 comment(s)
Today, Apple released its annual update across all its operating systems. With that, Apple not only released new features but also patched 261 different vulnerabilities. This is the most vulnerabilities Apple has ever patched, but the increase is not as significant as other vendors' "post-AI" patch releases.
In addition to the major "27" version, Apple also released bug-fix-only releases for the 26 branch of its operating systems and for 15 (Sequioa) for macOS. None of the vulnerabilities is labeled as being exploited. Apple does not note a severity to individual vulnerabilities.
There are some reports about difficulties downloading iOS 27. Users instead
Sans Isc
Apple Patches iOS and macOS, (Mon, Aug 17th)
blogs_sans_isc·2026-08-17·CVSS 5.5
CVE-2026-28958 [MEDIUM] Apple Patches iOS and macOS, (Mon, Aug 17th)
Apple Patches iOS and macOS
Published: 2026-08-17. Last Updated: 2026-08-17 20:26:39 UTC
by Johannes Ullrich (Version: 1)
0 comment(s)
Apple today released updates for iOS/iPadOS (26 and 18) and macOS 26. This update fixes 108 vulnerabilities and comes about two weeks after the much smaller macOS update that addressed the single screen-sharing vulnerability. This vulnerability did not affect iOS/iPadOS.
None of the vulnerabilities has been exploited so far. There are a few WebKit vulnerabilities, but no standalone Safari patch for older operating systems. 87 of the vulnerabilities affect only iOS 18, making this more of an iOS 18 release than one for the newer operating systems. Only six vulnerabilities affect all three OSs released today. All 6 vulnerabilities affect WebKit.
Apple's
2026-08-17
Published