SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2016-1727

WebKit, as used in Apple iOS before 9.2.1, Safari before 9.0.3, and tvOS before 9.1.1, 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-2016-1724.

HIGH 8.8EPSS 4.37%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (4.37%). 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 9.2.1, Safari before 9.0.3, and tvOS before 9.1.1, 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-2016-1724.

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
4.37% probability · 91th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-119
Affected
apple/safari · apple/iphone os · apple/tvos · apple/watchos · webkitgtk/webkitgtk\+
Source
product-security@apple.com
EPSS trend
0%5%10%21 September 2026: 5.56%22 September 2026: 4.45%26 October 2026: 4.37%21 September 202626 October 2026

EPSS moved from 5.6% on 21 September 2026 to 4.4% on 26 October 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.

References

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.