CVE-2017-13803
It allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via a crafted web site.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.51%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
An issue was discovered in certain Apple products. iOS before 11.1 is affected. Safari before 11.0.1 is affected. iCloud before 7.1 on Windows is affected. iTunes before 12.7.1 on Windows is affected. tvOS before 11.1 is affected. The issue involves the "WebKit" component. It allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via a crafted web site.
- 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
- 1.51% probability · 74th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-119
- Affected
- apple/safari · apple/iphone os · apple/tvos · apple/icloud · apple/itunes · apple/webkit
- Source
- product-security@apple.com
EPSS 1.5% since 27 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://www.securitytracker.com/id/1039703Third Party Advisory, VDB Entry
- https://security.gentoo.org/glsa/201712-01Third Party Advisory
- https://support.apple.com/HT208219Vendor Advisory
- https://support.apple.com/HT208222Vendor Advisory
- https://support.apple.com/HT208223Vendor Advisory
- https://support.apple.com/HT208224Vendor Advisory
- https://support.apple.com/HT208225Vendor Advisory
- http://www.securitytracker.com/id/1039703Third Party Advisory, VDB Entry
- https://security.gentoo.org/glsa/201712-01Third Party Advisory
- https://support.apple.com/HT208219Vendor Advisory
- https://support.apple.com/HT208222Vendor Advisory
- https://support.apple.com/HT208223Vendor Advisory
- https://support.apple.com/HT208224Vendor Advisory
- https://support.apple.com/HT208225Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.