# CVE-2016-4657

WebKit in Apple iOS before 9.3.5 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted web site.

- Page: https://www.vulneraibility.com/cve/CVE-2016-4657
- CVSS: 8.8
- Known exploited: yes, in CISA KEV since 2022-05-24; CISA due date 2022-06-14
- EPSS: 66.79% (percentile 99.3)
- Public exploit code: 2 on Exploit-DB · 1 Metasploit module · 3 GitHub proofs of concept (first 2017-03-12)
- CISA SSVC: exploitation active, automatable no, technical impact total (assessed 2025-01-29)
- Weakness: CWE-787
- Published: 2016-08-25

## Affected

- apple:iphone_os

## References

- [other] https://blog.lookout.com/blog/2016/08/25/trident-pegasus/
- [other] https://www.youtube.com/watch?v=xkdPjbaLngE
- [exploit] https://www.exploit-db.com/exploits/44836/
- [other] http://www.securityfocus.com/bid/92653
- [other] https://support.apple.com/HT207107
- [advisory] http://lists.apple.com/archives/security-announce/2016/Aug/msg00000.html
- [other] http://www.securitytracker.com/id/1036694
- [other] https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2016-4657

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Summary, impact and action are written by the vulneraibility.com AI analysis pipeline from the CVE record, NVD, CISA and FIRST data; verify against the references.