VulnerabilityModified

CVE-2019-8641

An out-of-bounds read was addressed with improved input validation.

EXPLOIT ×2 ✓CRITICAL 9.8EPSS 17.1%

Does this matter?

EPSS puts the probability of exploitation in the next 30 days at 17.1%, higher than 97% of all known CVEs. Patch or mitigate before the next change window.

Description

An out-of-bounds read was addressed with improved input validation.

CVSS 3.1: 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS: 17.13% probability · 97th percentile
Public exploits: 2 in Exploit-DB · verified · first 24 September 2019
CISA KEV: Not listed
Weakness: CWE-125
Affected: apple/iphone os · apple/mac os x · apple/tvos · apple/watchos
Source: product-security@apple.com

EPSS trend

EPSS 17.1% since 3 November 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 (2)

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-ID	Title	Type	Published	Verified
EDB-47608 source ↗	iMessage - Decoding NSSharedKeyDictionary can read ObjC Object at Attacker Controlled Addressmultiple · Google Security Research	dos	11 November 2019	yes
EDB-47415 source ↗	iMessage - Decoding NSSharedKeyDictionary Can Read Object Out of Boundsios · Google Security Research	dos	24 September 2019	yes

References

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