CVE-2016-4763 json
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 certificat…
published 2016-09-25 10 y ago modified 2026-06-17 4 mo ago also EUVD-2016-5748
- cvss
- 6.8
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.2%
- EPSS 1.2% chance of exploitation in 30 days, percentile 68%
- public exploits
- 0
- none known
Summary
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.
Exploit prediction
1.20% chance of exploitation in the next 30 days, higher than 68% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.0 | 6.8 | CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N |
| NVD | 2.0 | 4.9 | AV:N/AC:M/Au:S/C:P/I:P/A:N |
Classification
- Weakness
-
- CWE-310 Cryptographic Issues
References
-
lists.apple.com
/archives/security-announce/2016/Sep/msg00008.html
vendor-advisory, mailing-list
-
lists.apple.com
/archives/security-announce/2016/Sep/msg00012.html
vendor-advisory, mailing-list
-
lists.apple.com
/archives/security-announce/2016/Sep/msg00007.html
vendor-advisory, mailing-list
-
support.apple.com
/HT207157
vendor-advisory
-
support.apple.com
/HT207158
vendor-advisory
-
support.apple.com
/HT207143
vendor-advisory
-
securityfocus.com
/bid/93066
vdb-entry
-
securitytracker.com
/id/1036854
vdb-entry
Sources
- CVE List CVE-2016-4763
- NVD CVE-2016-4763
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.