CVE-2025-43398
published 2025-11-04CVE-2025-43398: The issue was addressed with improved memory handling. This issue is fixed in iOS 18.7.2 and iPadOS 18.7.2, iOS 26.1 and iPadOS 26.1, macOS Sequoia 15.7.2…
PriorityP420medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.20%
9.1th percentile
The issue was addressed with improved memory handling. This issue is fixed in iOS 18.7.2 and iPadOS 18.7.2, iOS 26.1 and iPadOS 26.1, macOS Sequoia 15.7.2, macOS Sonoma 14.8.2, macOS Tahoe 26.1, tvOS 26.1, visionOS 26.1, watchOS 26.1. An app may be able to cause unexpected system termination.
Affected
28 ranges· showing 25
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| apple | ios_18.7.2_and_ipados | — | — |
| apple | ios_26.1_and_ipados | — | — |
| apple | ios_and_ipados | < 18.7.2 | 18.7.2 |
| apple | ios_and_ipados | < 26.1 | 26.1 |
| apple | ipados | < 26.1 | 26.1 |
| apple | iphone_os | < 26.1 | 26.1 |
| apple | macos | < 14.8.2 | 14.8.2 |
| apple | macos | < 15.7.2 | 15.7.2 |
| apple | macos | < 26.1 | 26.1 |
| apple | macos | >= 14.0 < 14.8.2 | 14.8.2 |
| apple | macos | >= 15.0 < 15.7.2 | 15.7.2 |
| apple | macos_sequoia | — | — |
| apple | macos_sonoma | — | — |
| apple | macos_tahoe | — | — |
| apple | tvos | < 26.1 | 26.1 |
| apple | tvos | — | — |
| apple | visionos | < 26.1 | 26.1 |
| apple | visionos | — | — |
| apple | watchos | < 26.1 | 26.1 |
| apple | watchos | — | — |
| msrc | azl3_ruby_3.3.3-2_on_azure_linux_3.0 | — | — |
| msrc | azl3_ruby_3.3.5-1_on_azure_linux_3.0 | — | — |
| msrc | azl3_rubygem-rexml_3.3.4-1_on_azure_linux_3.0 | — | — |
| msrc | azl3_rubygem-rexml_3.3.9-1_on_azure_linux_3.0 | — | — |
| msrc | azure_linux_3.0_arm | — | — |
CVSS provenance
nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
osv5.3MEDIUM
vendor_msrc5.9MEDIUM
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Apple
CVE-2025-43398: iOS 18.7.2 and iPadOS 18.7.2
vendor_apple·2025-11-05·CVSS 5.5
CVE-2025-43398 [MEDIUM] CVE-2025-43398: iOS 18.7.2 and iPadOS 18.7.2
Apple Security Update: About the security content of iOS 18.7.2 and iPadOS 18.7.2
Product: iOS 18.7.2 and iPadOS
Version: 18.7.2
CVE: CVE-2025-43398
Component: Kernel
Impact: An app may be able to cause unexpected system termination
Description: The issue was addressed with improved memory handling.
Apple
CVE-2025-43398: tvOS 26.1
vendor_apple·2025-11-03·CVSS 5.5
CVE-2025-43398 [MEDIUM] CVE-2025-43398: tvOS 26.1
Apple Security Update: About the security content of tvOS 26.1
Product: tvOS
Version: 26.1
CVE: CVE-2025-43398
Component: Kernel
Impact: An app may be able to cause unexpected system termination
Description: The issue was addressed with improved memory handling.
Apple
CVE-2025-43398: visionOS 26.1
vendor_apple·2025-11-03·CVSS 5.5
CVE-2025-43398 [MEDIUM] CVE-2025-43398: visionOS 26.1
Apple Security Update: About the security content of visionOS 26.1
Product: visionOS
Version: 26.1
CVE: CVE-2025-43398
Component: Kernel
Impact: An app may be able to cause unexpected system termination
Description: The issue was addressed with improved memory handling.
Apple
CVE-2025-43398: iOS 26.1 and iPadOS 26.1
vendor_apple·2025-11-03·CVSS 5.5
CVE-2025-43398 [MEDIUM] CVE-2025-43398: iOS 26.1 and iPadOS 26.1
Apple Security Update: About the security content of iOS 26.1 and iPadOS 26.1
Product: iOS 26.1 and iPadOS
Version: 26.1
CVE: CVE-2025-43398
Component: Kernel
Impact: An app may be able to cause unexpected system termination
Description: The issue was addressed with improved memory handling.
Apple
CVE-2025-43398: watchOS 26.1
vendor_apple·2025-11-03·CVSS 5.5
CVE-2025-43398 [MEDIUM] CVE-2025-43398: watchOS 26.1
Apple Security Update: About the security content of watchOS 26.1
Product: watchOS
Version: 26.1
CVE: CVE-2025-43398
Component: Kernel
Impact: An app may be able to cause unexpected system termination
Description: The issue was addressed with improved memory handling.
Apple
CVE-2025-43398: macOS Sequoia 15.7.2
vendor_apple·2025-11-03·CVSS 5.5
CVE-2025-43398 [MEDIUM] CVE-2025-43398: macOS Sequoia 15.7.2
Apple Security Update: About the security content of macOS Sequoia 15.7.2
Product: macOS Sequoia
Version: 15.7.2
CVE: CVE-2025-43398
Component: Kernel
Impact: An app may be able to cause unexpected system termination
Description: The issue was addressed with improved memory handling.
Apple
CVE-2025-43398: macOS Tahoe 26.1
vendor_apple·2025-11-03·CVSS 5.5
CVE-2025-43398 [MEDIUM] CVE-2025-43398: macOS Tahoe 26.1
Apple Security Update: About the security content of macOS Tahoe 26.1
Product: macOS Tahoe
Version: 26.1
CVE: CVE-2025-43398
Component: Kernel
Impact: An app may be able to cause unexpected system termination
Description: The issue was addressed with improved memory handling.
Apple
CVE-2025-43398: macOS Sonoma 14.8.2
vendor_apple·2025-11-03·CVSS 5.5
CVE-2025-43398 [MEDIUM] CVE-2025-43398: macOS Sonoma 14.8.2
Apple Security Update: About the security content of macOS Sonoma 14.8.2
Product: macOS Sonoma
Version: 14.8.2
CVE: CVE-2025-43398
Component: Kernel
Impact: An app may be able to cause unexpected system termination
Description: The issue was addressed with improved memory handling.
Microsoft
REXML denial of service vulnerability
vendor_msrc·2024-08-13·CVSS 5.9
CVE-2024-43398 [MEDIUM] CWE-776 REXML denial of service vulnerability
REXML denial of service vulnerability
FAQ: Is Azure Linux the only Microsoft product that includes this open-source library and is therefore potentially affected by this vulnerability?
One of the main benefits to our customers who choose to use the Azure Linux distro is the commitment to keep it up to date with the most recent and most secure versions of the open source libraries with which the distro is composed. Microsoft is committed to transparency in this work which is why we began publishing CSAF/VEX in October 2025. See this blog post for more information. If impact to additional products is identified, we will update the CVE to reflect this.
Mariner: Mariner
GitHub_M: GitHub_M
Customer Action Required: Yes
Remediation: CBL-Mariner Releases
Reference: https://learn.microsoft.c
GHSA
GHSA-47gw-6w5v-m496: The issue was addressed with improved memory handling
ghsa_unreviewed·2025-11-04
CVE-2025-43398 [MEDIUM] CWE-119 GHSA-47gw-6w5v-m496: The issue was addressed with improved memory handling
The issue was addressed with improved memory handling. This issue is fixed in visionOS 26.1, macOS Sonoma 14.8.2, macOS Sequoia 15.7.2, watchOS 26.1, iOS 26.1 and iPadOS 26.1, tvOS 26.1. An app may be able to cause unexpected system termination.
OSV
ruby2.7, ruby3.0, ruby3.2, ruby3.3 vulnerabilities
osv·2025-04-07·CVSS 5.3
CVE-2024-35176 ruby2.7, ruby3.0, ruby3.2, ruby3.3 vulnerabilities
ruby2.7, ruby3.0, ruby3.2, ruby3.3 vulnerabilities
It was discovered that Ruby incorrectly handled parsing of an XML document
that has specific XML characters in an attribute value using REXML gem. An
attacker could use this issue to cause Ruby to crash, resulting in a
denial of service. This issue only affected in Ubuntu 22.04 LTS, Ubuntu
24.04 LTS, and Ubuntu 24.10. (CVE-2024-35176, CVE-2024-39908,
CVE-2024-41123, CVE-2024-43398)
It was discovered that Ruby incorrectly handled expanding ranges in the
net-imap response parser. If a user or automated system were tricked into
connecting to a malicious IMAP server, a remote attacker could possibly use
this issue to consume memory, leading to a denial of service. This issue
only affected Ubuntu 24.04 LTS, and Ubuntu 24.10. (CVE-2025-25186)
No detection rules found.
No public exploits indexed.
https://support.apple.com/en-us/125632https://support.apple.com/en-us/125633https://support.apple.com/en-us/125634https://support.apple.com/en-us/125635https://support.apple.com/en-us/125636https://support.apple.com/en-us/125637https://support.apple.com/en-us/125638https://support.apple.com/en-us/125639
2025-11-04
Published