PatchSiren cyber security CVE debrief
CVE-2016-7632 Apple CVE debrief
CVE-2016-7632 is a high-severity Apple WebKit memory corruption issue that can be triggered through a crafted website. According to the supplied NVD record, it may allow remote code execution or denial of service, and it requires user interaction (visiting the site). The affected products listed in the source corpus are iOS, Safari, iCloud, and iTunes, with vulnerable version ranges published by NVD and Apple-linked advisories referenced from the record.
- Vendor
- Apple
- Product
- CVE-2016-7632
- CVSS
- HIGH 8.8
- CISA KEV
- Not listed in stored evidence
- Original CVE published
- 2017-02-20
- Original CVE updated
- 2026-05-13
- Advisory published
- 2017-02-20
- Advisory updated
- 2026-05-13
Who should care
Organizations and users running affected Apple software versions should care, especially teams responsible for macOS/iOS endpoint management, browser security, and asset inventory. Any environment where users browse the web on vulnerable Apple devices or software versions has exposure because the attack is delivered through a crafted website.
Technical summary
The NVD entry classifies this issue as CWE-119 and assigns CVSS 3.0 vector AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H. The vulnerability is in WebKit, Apple’s browser engine component, and the attack path is network-delivered content that a user must open. The supplied corpus states that iOS before 10.2, Safari before 10.0.2, iCloud before 6.1, and iTunes before 12.5.4 are affected; the CPE criteria in the same record also expresses an iPhone OS boundary through 10.1.1. This source-set discrepancy should be treated carefully when mapping exposure to specific versions.
Defensive priority
High. The flaw is remotely reachable through web content, needs no privileges, and impacts confidentiality, integrity, and availability at high severity. Prioritize patching or version-based mitigation on Apple endpoints that may browse untrusted web content.
Recommended defensive actions
- Update affected Apple software to fixed versions at or above the version boundaries named in the source corpus.
- Inventory Apple devices and applications to identify any iOS, Safari, iCloud, or iTunes installations that fall within the vulnerable ranges.
- Treat WebKit/browser-engine updates as high priority because successful exploitation can be delivered through normal web browsing.
- If immediate patching is not possible, reduce exposure by limiting access to untrusted websites on vulnerable systems until remediation is complete.
- Validate remediation against Apple’s referenced support advisories and the NVD record for the exact product/version in your environment.
Evidence notes
Supported by the supplied NVD record: description, CVSS vector, CWE-119 classification, and vulnerable version ranges for Apple products. The record also references Apple support advisories (HT207421, HT207422, HT207424, HT207427), plus SecurityFocus, SecurityTracker, and Gentoo GLSA references. No exploit code or offensive reproduction details are included here. The source corpus contains a version-boundary mismatch between the narrative description (iOS before 10.2) and the CPE criteria (iPhone OS through 10.1.1); version mapping should therefore be validated against the official Apple advisories before operational decisions.
Official resources
Publicly disclosed in the supplied NVD record on 2017-02-20. The provided enrichment does not indicate KEV listing or known ransomware campaign use.