MEDIUM
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
Published Sep 25, 2016
6.8
MEDIUMCVSS 3.0
EPSS 1.20%
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.
Affected products
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
6.8 MEDIUM NVD
CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
Attack Vector Network
Attack Complexity High
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality Impact High
Integrity Impact High
Availability Impact None
4.9 MEDIUM NVD
AV:N/AC:M/Au:S/C:P/I:P/A:N
Access Vector Network
Access Complexity Medium
Authentication Single
Confidentiality Impact Partial
Integrity Impact Partial
Availability Impact None
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
1.20% 0.01197
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.01197
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (10 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.20% (0.01197) | 67.00th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.20% (0.01197) | 63.98th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.23% (0.00228) | 43.60th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.14% (0.00143) | 51.63th | v3 (v2023.03.01) |
| Jun 20, 2024 | 0.14% (0.00143) | 50.31th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.14% (0.00143) | 48.29th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.10% (0.01104) | 54.09th | v2 (v2022.01.01) |
| Sep 17, 2022 | 1.10% (0.01104) | 52.45th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.10% (0.01104) | 50.41th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.10% (0.01104) | 28.85th | v2 (v2022.01.01) |
Weaknesses (1)
References (8)
- http://lists.apple.com/archives/security-announce/2016/Sep/msg00007.html vendor-advisoryx_refsource_APPLEMailing ListVendor Advisory
- http://lists.apple.com/archives/security-announce/2016/Sep/msg00008.html vendor-advisoryx_refsource_APPLEMailing ListVendor Advisory
- http://lists.apple.com/archives/security-announce/2016/Sep/msg00012.html vendor-advisoryx_refsource_APPLEMailing ListVendor Advisory
- http://www.securityfocus.com/bid/93066 vdb-entryx_refsource_BID
- http://www.securitytracker.com/id/1036854 vdb-entryx_refsource_SECTRACK
- https://support.apple.com/HT207143 x_refsource_CONFIRMVendor Advisory
- https://support.apple.com/HT207157 x_refsource_CONFIRMVendor Advisory
- https://support.apple.com/HT207158 x_refsource_CONFIRMVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| http://lists.apple.com/archives/security-announce/2016/Sep/msg00007.html | vendor-advisoryx_refsource_APPLEMailing ListVendor Advisory | |
| http://lists.apple.com/archives/security-announce/2016/Sep/msg00008.html | vendor-advisoryx_refsource_APPLEMailing ListVendor Advisory | |
| http://lists.apple.com/archives/security-announce/2016/Sep/msg00012.html | vendor-advisoryx_refsource_APPLEMailing ListVendor Advisory | |
| http://www.securityfocus.com/bid/93066 | vdb-entryx_refsource_BID | |
| http://www.securitytracker.com/id/1036854 | vdb-entryx_refsource_SECTRACK | |
| https://support.apple.com/HT207143 | x_refsource_CONFIRMVendor Advisory | |
| https://support.apple.com/HT207157 | x_refsource_CONFIRMVendor Advisory | |
| https://support.apple.com/HT207158 | x_refsource_CONFIRMVendor Advisory |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner apple
Published Sep 25, 2016
Updated Aug 6, 2024
Reserved May 11, 2016
Link CVE-2016-4763
CISA Vulnrichment
Updated n/a