SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2019-8611

Multiple memory corruption issues were addressed with improved memory handling.

EXPLOIT ✓HIGH 8.8EPSS 8.41%

Does this matter?

A public exploit is published in Exploit-DB (verified) and the impact is high, while EPSS rates exploitation at 8.4%. Anyone can run this; patch or mitigate before the next change window and check exposed instances for signs of use.

Description

Multiple memory corruption issues were addressed with improved memory handling. This issue is fixed in iOS 12.3, macOS Mojave 10.14.5, tvOS 12.3, Safari 12.1.1, iTunes for Windows 12.9.5, iCloud for Windows 7.12. Processing maliciously crafted web content may lead to arbitrary code execution.

CVSS 3.1
8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS
8.41% probability · 95th percentile
Public exploits
1 in Exploit-DB · verified · first 21 May 2019
CISA KEV
Not listed
Weakness
CWE-787
Affected
apple/icloud · apple/itunes · apple/safari · apple/iphone os · apple/mac os x
Source
product-security@apple.com
EPSS trend
0%5%10%26 October 2026: 8.41%26 October 202626 October 2026

EPSS 8.4% since 26 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

Public exploits (1)

Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.

EDB-IDTitleTypePublishedVerified
EDB-46890source ↗Apple macOS < 10.14.5 / iOS < 12.3 JavaScriptCore - AIR Optimization Incorrectly Removes Assignment to Registermultiple · Google Security Researchdos21 May 2019yes

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