VulnTideExploited vulnerabilities, by vendor. Data as of .
Not in CISA KEVReported exploited: VulnCheck KEV since Published EPSS 11% probability of exploitation in 30 days
Apple

CVE-2019-8646: An out-of-bounds read was addressed with improved input validation.

Is it exploited?

Reported, not confirmed by CISA. VulnCheck KEV lists it as exploited in the wild. CISA has not added it to its Known Exploited Vulnerabilities catalog as of .

VulnCheck KEV lists it since . It cites 1 public report, the first from .

How likely is exploitation in the next 30 days?
11%

EPSS score, percentile 95.9 of all scored records. A probability estimated by FIRST, not a report of exploitation.

How severe?
Not scored

The CVE record carries no CVSS score.

What should I do?

CISA has set no required action, because the vulnerability is not in KEV.

The CVE record links no vendor advisory, patch or mitigation.

Which versions are affected?

Affected

  • before iOS 12.4
  • before macOS Mojave 10.14.6
  • before tvOS 12.4
  • before watchOS 5.3

Versions by product

Source: CISA KEV 2026.10.29, as of ; VulnCheck KEV, as of ; FIRST EPSS, as of ; CVE List, as of . About the data.

Description

An out-of-bounds read was addressed with improved input validation. This issue is fixed in iOS 12.4, macOS Mojave 10.14.6, tvOS 12.4, watchOS 5.3. A remote attacker may be able to leak memory.

Source: CVE List, as of . About the data.

What to do

Advisories and patches

The CVE record links no vendor advisory, patch or mitigation.

This summary is based on the CVE record as of . Check the vendor's advisory before you act: affected versions and fixes can change.

Affected products and versions

Versions by product, as listed in the CVE record (4 products)
Apple iOS
StatusVersions
Affectedbefore iOS 12.4
Apple macOS
StatusVersions
Affectedbefore macOS Mojave 10.14.6
Apple tvOS
StatusVersions
Affectedbefore tvOS 12.4
Apple watchOS
StatusVersions
Affectedbefore watchOS 5.3

Source: CVE List, as of . About the data.

Timeline

DateEvent
CVE record published
CVE record last updated

References

4

Known exploited Apple vulnerabilities

  • CVE-2026-86950: Apple Multiple Products Out-of-Bounds Write Vulnerability (added )
  • CVE-2026-65400: Apple macOS Improper Authentication Vulnerability (added )
  • CVE-2025-31277: Apple Multiple Products Buffer Overflow Vulnerability (added )
  • CVE-2025-43510: Apple Multiple Products Improper Locking Vulnerability (added )
  • CVE-2025-43520: Apple Multiple Products Classic Buffer Overflow Vulnerability (added )