CVE-2016-1856
WebKit, as used in Apple iOS before 9.3.2, Safari before 9.1.1, and tvOS before 9.2.1, allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted web site, a different vulnerability than…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.59%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
WebKit, as used in Apple iOS before 9.3.2, Safari before 9.1.1, and tvOS before 9.2.1, allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted web site, a different vulnerability than CVE-2016-1854, CVE-2016-1855, and CVE-2016-1857.
- CVSS 3.0
- 8.8 HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS
- 2.59% probability · 85th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-119
- Affected
- apple/safari · apple/iphone os · apple/tvos · webkitgtk/webkitgtk\+
- Source
- product-security@apple.com
EPSS 2.6% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://lists.apple.com/archives/security-announce/2016/May/msg00001.htmlMailing List, Vendor Advisory
- http://lists.apple.com/archives/security-announce/2016/May/msg00002.htmlMailing List, Vendor Advisory
- http://lists.apple.com/archives/security-announce/2016/May/msg00005.htmlMailing List, Vendor Advisory
- http://packetstormsecurity.com/files/137229/WebKitGTK-Code-Execution-Denial-Of-Service-Memory-Corruption.htmlThird Party Advisory, VDB Entry
- http://www.securityfocus.com/archive/1/538522/100/0/threadedThird Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1035888Third Party Advisory, VDB Entry
- http://www.zerodayinitiative.com/advisories/ZDI-16-342Third Party Advisory, VDB Entry
- https://support.apple.com/HT206564Vendor Advisory
- https://support.apple.com/HT206565Vendor Advisory
- https://support.apple.com/HT206568Vendor Advisory
- http://lists.apple.com/archives/security-announce/2016/May/msg00001.htmlMailing List, Vendor Advisory
- http://lists.apple.com/archives/security-announce/2016/May/msg00002.htmlMailing List, Vendor Advisory
- http://lists.apple.com/archives/security-announce/2016/May/msg00005.htmlMailing List, Vendor Advisory
- http://packetstormsecurity.com/files/137229/WebKitGTK-Code-Execution-Denial-Of-Service-Memory-Corruption.htmlThird Party Advisory, VDB Entry
- http://www.securityfocus.com/archive/1/538522/100/0/threadedThird Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1035888Third Party Advisory, VDB Entry
- http://www.zerodayinitiative.com/advisories/ZDI-16-342Third Party Advisory, VDB Entry
- https://support.apple.com/HT206564Vendor Advisory
- https://support.apple.com/HT206565Vendor Advisory
- https://support.apple.com/HT206568Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.