CVE-2025-43505: Input Validation
Published Nov 3, 2025
·Updated
An out-of-bounds write issue was addressed with improved input validation. This issue is fixed in Xcode 26.1. Processing a maliciously crafted file may lead to heap corruption.
Other sources
GNU. An out-of-bounds write issue was addressed with improved input validation.
— Apple
Credit
Nathaniel Oh@@calysteon
Affected Software
2 affected componentsFixes available
Apple Xcode<26.1
26.1
Apple Xcode<26.1
Event History
Nov 3, 2025
Data Sourced
via Apple·12:00 AM
DescriptionWeaknessAffected Software
Nov 4, 2025
CVE Published
via MITRE·01:16 AM
Data Sourced
via MITRE·01:16 AM
DescriptionWeakness
Data Sourced
via NVD·02:15 AM
DescriptionSeverityWeaknessAffected Software
Frequently Asked Questions
1
What is the severity of CVE-2025-43505?
CVE-2025-43505 is considered a high severity vulnerability due to the risk of heap corruption from out-of-bounds write issues.
2
How do I fix CVE-2025-43505?
To fix CVE-2025-43505, upgrade to Apple Xcode version 26.1 or later.
3
What kind of issue is CVE-2025-43505?
CVE-2025-43505 is an out-of-bounds write vulnerability that can be exploited through maliciously crafted files.
4
Which versions of Xcode are affected by CVE-2025-43505?
CVE-2025-43505 affects all Xcode versions prior to 26.1.
5
What happens if I don't address CVE-2025-43505?
Failing to address CVE-2025-43505 may lead to potential heap corruption, causing application crashes or unauthorized access.