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Fencer Vulns
high 8.8

CVE-2025-43505 json

An out-of-bounds write issue was addressed with improved input validation.

published 2025-11-04 12 mo ago modified 2026-10-18 21 d ago also EUVD-2025-37653

cvss
8.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 21%
public exploits
0
none known

Summary

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.

Patch / fix

  • Apple Xcode 26.1

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
12 mo ago

Exploit prediction

0.29% chance of exploitation in the next 30 days, higher than 21% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CISA ADP 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CNA 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected products

  • Apple Xcode

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.