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Vulnerability record · CVE-2017-7040 · published 20 July 2017

CVE-2017-7040: Apple icloud memory buffer overflow vulnerability

Apple · Icloud

An issue was discovered in certain Apple products. iOS before 10.3.3 is affected. Safari before 10.1.2 is affected. iCloud before 6.2.2 on Windows is affected. iTunes before 12.6.2 on Windows is affected. tvOS before 10.2.2 is affected. The issue involves the "WebKit" component. It allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via a crafted web site.

8.8 CVSS 3.0 High EPSS 6.3% · top 6.6% CWE-119 · Memory buffer overflow
8.8CVSS 3.0 base score, v2 6.8
6.3%EPSS exploitation probability, 30 days
NoNot in CISA KEV
5Affected product versions listed by NVD
18References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

An issue was discovered in certain Apple products. iOS before 10.3.3 is affected. Safari before 10.1.2 is affected. iCloud before 6.2.2 on Windows is affected. iTunes before 12.6.2 on Windows is affected. tvOS before 10.2.2 is affected. The issue involves the "WebKit" component. It allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via a crafted web site.

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected products

5 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://www.securityfocus.com/bid/99885 Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1038950 Third Party AdvisoryVDB Entry
https://security.gentoo.org/glsa/201710-14 Third Party Advisory
https://support.apple.com/HT207921 Vendor Advisory
https://support.apple.com/HT207923 Vendor Advisory
https://support.apple.com/HT207924 Vendor Advisory
https://support.apple.com/HT207927 Vendor Advisory
https://support.apple.com/HT207928 Vendor Advisory
https://www.exploit-db.com/exploits/42367/ ExploitThird Party AdvisoryVDB Entry
http://www.securityfocus.com/bid/99885 Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1038950 Third Party AdvisoryVDB Entry
https://security.gentoo.org/glsa/201710-14 Third Party Advisory
https://support.apple.com/HT207921 Vendor Advisory
https://support.apple.com/HT207923 Vendor Advisory
https://support.apple.com/HT207924 Vendor Advisory
https://support.apple.com/HT207927 Vendor Advisory
https://support.apple.com/HT207928 Vendor Advisory
https://www.exploit-db.com/exploits/42367/ ExploitThird Party AdvisoryVDB Entry

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2017-7040), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.