PatchSiren cyber security CVE debrief
CVE-2016-7635 Apple CVE debrief
CVE-2016-7635 is a high-severity Apple WebKit memory-corruption issue disclosed publicly on 2017-02-20. According to NVD, a crafted website could let a remote attacker execute code or crash the affected application on vulnerable Apple software versions.
- Vendor
- Apple
- Product
- CVE-2016-7635
- 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 should care, especially those with iOS 10.1.1 or earlier, Safari 10.0.1 or earlier, iCloud 6.0.1 or earlier, or iTunes 12.5.3 or earlier. Security teams managing Apple endpoints should prioritize verification and upgrading.
Technical summary
NVD classifies the weakness as CWE-119 and lists CVSS 3.0 8.8 (AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H). The issue affects Apple WebKit and is reachable through web content, with the described impact being remote code execution or denial of service via memory corruption and application crash.
Defensive priority
High
Recommended defensive actions
- Upgrade affected Apple products to versions newer than those listed as vulnerable in NVD.
- Prioritize patching exposed Safari, iOS, iCloud, and iTunes installations used for general web browsing or internet-facing workflows.
- Use the linked Apple vendor advisories to confirm the exact fixed releases for your platform and deployment channel.
- Inventory Apple devices and applications to identify versions at or below the affected thresholds.
- Treat this as a memory-corruption issue and ensure standard endpoint hardening and rapid update validation are in place.
Evidence notes
This debrief is based only on the supplied NVD record and its listed references. The corpus states affected versions for iOS, Safari, iCloud, and iTunes, identifies the WebKit component, and classifies the weakness as CWE-119. Apple advisory URLs are listed in NVD, but the advisory text was not provided in the source corpus.
Official resources
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CVE-2016-7635 CVE record
CVE.org
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CVE-2016-7635 NVD detail
NVD
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Source item URL
nvd_modified
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Mitigation or vendor reference
[email protected] - Third Party Advisory, VDB Entry
- Source reference
- Source reference
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Mitigation or vendor reference
[email protected] - Vendor Advisory
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Mitigation or vendor reference
[email protected] - Vendor Advisory
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Mitigation or vendor reference
[email protected] - Vendor Advisory
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Mitigation or vendor reference
[email protected] - Vendor Advisory
Publicly disclosed on 2017-02-20. NVD last-modified timestamp in the supplied corpus is 2026-05-13, which should not be treated as the original issue date. The record describes a WebKit memory-corruption vulnerability in older Apple iOS, i1