Public proof of conceptFix available

CVE-2019-8805

Q: Is CVE-2019-8805 actively exploited?

Active exploitation of CVE-2019-8805 has not been confirmed. Its EPSS score was 2.6% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

Q: What is the CVSS score for CVE-2019-8805?

CVE-2019-8805 has a CVSS v3 base score of 7.8 (HIGH severity), with vector string CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

A public proof of concept exists; no exploitation attested.

Published2019-12-18
Fixed in10.15.1

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

A validation issue existed in the entitlement verification. This issue was addressed with improved validation of the process entitlement. This issue is fixed in macOS Catalina 10.15.1. An application may be able to execute arbitrary code with system privileges.

Timeline

dates in UTC

2019-12-1818:15CVE publishedNVD
2026-10-2319:23First public proof of conceptPoC-in-GitHub

Observed activity

isMalicious corpus · updated 2026-10-23 18:48 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2019-8805?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2019-8805?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Apple mac os x

Branch	Affected	Fixed in	Source
10.15	< 10.15.1	10.15.1	NVD

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

Update Apple mac os x to 10.15.1

Advisories and patches

support.apple.comVendor Advisory

Detection

read 2026-10-23 19:23 UTC

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: 1 repository, unverifiedsecurelayer7/CVE-2019-8805

Sources

NVDCVSS 3.17.8read 2026-10-23
NVDCVSS 2.09.3read 2026-10-23
FIRST EPSSEPSS score2.6 %2026-10-22
PoC-in-GitHubproof of concept1read 2026-10-23

Technical details

CVSS v3 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Published: 2019-12-18
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2019-8805?

Is CVE-2019-8805 actively exploited?

Active exploitation of CVE-2019-8805 has not been confirmed. Its EPSS score was 2.6% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2019-8805?

CVE-2019-8805 has a CVSS v3 base score of 7.8 (HIGH severity), with vector string CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

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