Medium 5.5Published Oct 27, 2020

CVE-2019-8538A denial of service issue was addressed with improved validation.

Updated under an hour ago (Nov 2, 2026, 1:40 AM ET)

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It affects apple iphone_os and 2 other products. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Start free and add your stackFree account, 3 products Every CVE for apple iphone_os Exploited in the last 30 days

A denial of service issue was addressed with improved validation. This issue is fixed in watchOS 5.2, macOS Mojave 10.14.4, Security Update 2019-002 High Sierra, Security Update 2019-002 Sierra, iOS 12.2. Processing a maliciously crafted vcf file may lead to a denial of service.

CVSS: 5.5 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Not given
NVD analysis: Modified
Record last updated: Jun 16, 2026
First seen by InfoSec Signals: Nov 1, 2026

Affected products

Affected products

apple iphone_os apple:iphone_os	before 12.2	NVD
apple mac_os_x apple:mac_os_x	from 10.14.3 before 10.14.4	NVD
apple watchos apple:watchos	before 5.2	NVD

References

References

https://support.apple.com/en-us/HT209599	vendor-advisory
https://support.apple.com/en-us/HT209600	vendor-advisory
https://support.apple.com/en-us/HT209602	vendor-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.