How severe is CVE-2025-43505?

CVE-2025-43505 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2025-43505 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (18th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-43505?

CVE-2025-43505 affects Apple Xcode. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-43505?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2025-43505 have an EU (EUVD) identifier?

Yes. CVE-2025-43505 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-37653.

When was CVE-2025-43505 published?

CVE-2025-43505 was published on 2025-11-04 and last updated on 2026-06-17.

CVE-2025-43505

CVE-2025-43505 is a high-severity vulnerability in Apple Xcode with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-787.

Key facts

Severity: High (CVSS 3.x base score 8.8)
EPSS exploit prediction: 0% (18th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-37653
Weakness: CWE-787
Affected product: Apple Xcode
Published: 2025-11-04
Last modified: 2026-06-17

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.

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 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2025-43505 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (18th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-43505?: CVE-2025-43505 affects Apple Xcode. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-43505?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2025-43505 have an EU (EUVD) identifier?: Yes. CVE-2025-43505 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-37653.
When was CVE-2025-43505 published?: CVE-2025-43505 was published on 2025-11-04 and last updated on 2026-06-17.

References

https://support.apple.com/en-us/125641

Affected products (1)

cpe:2.3:a:apple:xcode:*:*:*:*:*:*:*:*

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