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CVE-2016-4763
WKWebView in WebKit in Apple iOS before 10, iTunes before 12.5.1 on Windows, and Safari before 10 does not properly verify X.509…
Medium6.8EPSS 1.2%
- Published
- Updated
- Reserved
- Assigned by
- apple
Description
WKWebView in WebKit in Apple iOS before 10, iTunes before 12.5.1 on Windows, and Safari before 10 does not properly verify X.509 certificates from HTTPS servers, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate.
Timeline
ID reserved
By apple
- 5 months later
· 5 months later
Published
- 8 years later
· 8 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.0 | Medium6.8 | CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N |
- EPSS (exploitation in 30 days)
- 1.2% · top 32% of all CVEs (8 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.8.
Weakness
Affected products
n/a
- affected n/a
References (8)
- APPLE-SA-2016-09-20-3 (opens in a new tab)vendor-advisoryx_refsource_APPLEx_transferred
- https://support.apple.com/HT207157 (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://support.apple.com/HT207158 (opens in a new tab)x_refsource_CONFIRMx_transferred
- 93066 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- 1036854 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- https://support.apple.com/HT207143 (opens in a new tab)x_refsource_CONFIRMx_transferred
- APPLE-SA-2016-09-20-7 (opens in a new tab)vendor-advisoryx_refsource_APPLEx_transferred
- APPLE-SA-2016-09-20-2 (opens in a new tab)vendor-advisoryx_refsource_APPLEx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2016-4763)Record last updated .