CVE-2018-4302
Processing maliciously crafted XML may lead to an unexpected application termination or arbitrary code execution.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.95%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
A null pointer dereference was addressed with improved validation. This issue is fixed in macOS High Sierra 10.13, iCloud for Windows 7.0, watchOS 4, iOS 11, iTunes 12.7 for Windows. Processing maliciously crafted XML may lead to an unexpected application termination or arbitrary code execution.
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS
- 0.95% probability · 61th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-476
- Affected
- apple/icloud · apple/itunes · apple/iphone os · apple/mac os x · apple/watchos
- Source
- product-security@apple.com
EPSS 0.9% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://support.apple.com/en-us/HT208112Vendor Advisory
- https://support.apple.com/en-us/HT208115Vendor Advisory
- https://support.apple.com/en-us/HT208141Vendor Advisory
- https://support.apple.com/en-us/HT208142Vendor Advisory
- https://support.apple.com/en-us/HT208144Vendor Advisory
- https://support.apple.com/en-us/HT208112Vendor Advisory
- https://support.apple.com/en-us/HT208115Vendor Advisory
- https://support.apple.com/en-us/HT208141Vendor Advisory
- https://support.apple.com/en-us/HT208142Vendor Advisory
- https://support.apple.com/en-us/HT208144Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.