Medium severity · published Oct 20, 2026
CVE-2026-86875
An input validation issue was addressed with improved input validation
4.3
CVSS
0.3%
EPSS
No
On KEV
Description
An input validation issue was addressed with improved input validation. This issue is fixed in Xcode 27. Parsing a maliciously crafted binary may lead to unexpected app termination.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
None
Integrity
None
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 20% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
XC
Xcode · Apple
before 27 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-86875
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-86875
support.apple.com
https://support.apple.com/en-us/149040
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