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CVE-2019-8647

50
FAUCET Score

CVE-2019-8647 is a critical use-after-free vulnerability affecting Apple's iOS, tvOS, and watchOS, specifically within iMessage. This flaw allows a remote attacker to achieve arbitrary code execution due to improved memory management not being implemented. With a CVSS score of 9.8, it presents a severe risk, as it can be exploited remotely without user interaction, leading to complete compromise of confidentiality, integrity, and availability. While not listed on CISA's KEV, an ExploitDB entry exists detailing an iMessage deserialization vulnerability, and the CVE has garnered significant community discussion and media coverage, indicating high interest and potential for exploitation.

Impacted Technologies

VendorProductVersion(s)CPE
< 12.4CPE matchmatch criteria
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
< 12.4CPE matchmatch criteria
cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*
< 5.3CPE matchmatch criteria
cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
13.45%
Probability of exploitation in next 30 days
EPSS Percentile
96.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
ExploitDB: EDB-47192 · Jul 30, 2019
This CVE's current EPSS score of 0.1345 is in the 92nd percentile among its peer group of 36,897 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

applevendor investigatingvia nvd_reference
View patch

References

support.apple.com / HT210346
Vendor Advisory
support.apple.com / HT210351
Vendor Advisory
support.apple.com / HT210353
Vendor Advisory