CVE-2025-43505

Name: CVE-2025-43505
Creator: NVD / NIST
Published: 2025-11-04T02:15:53.467+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 0.23%

Last modified Jun 17, 2026

CVE-2025-43505 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. An out-of-bounds write issue was addressed with improved input validation. This issue is fixed in Xcode 26.1. EPSS estimates a 0.23% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1

8.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS Probability

0.23%

14.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-787

Affected Software

Vendor	Product	Versions
Apple	Xcode	< 26.1

References

https://support.apple.com/en-us/125641Release Notes, Vendor Advisory

Timeline

Published: Nov 4, 2025
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2025-43505?

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.

How severe is CVE-2025-43505?

CVE-2025-43505 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 0.23% probability of exploitation in the next 30 days.

How do I fix CVE-2025-43505?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-43505?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST