VulnTideExploited vulnerabilities, by vendor. Data as of .
Not in CISA KEVReported exploited: VulnCheck KEV since Published EPSS 0.4% probability of exploitation in 30 days
Apple

CVE-2020-9771: This issue was addressed with a new entitlement.

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?
0.4%

EPSS score, percentile 31.3 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 macOS Catalina 10.15.4

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

This issue was addressed with a new entitlement. This issue is fixed in macOS Catalina 10.15.4. A user may gain access to protected parts of the file system.

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 (1 product)
Apple macOS
StatusVersions
Affectedbefore macOS Catalina 10.15.4

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

Timeline

DateEvent
CVE record published
CVE record last updated

References

1

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 )