What is CVE-2020-10005?

CVE-2020-10005 is a medium-severity vulnerability in Apple macOS, classified under Uncontrolled Resource Consumption. CVSS score: 6.5/10. Published 2021-10-28.

How severe is CVE-2020-10005?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Is CVE-2020-10005 known to be exploited?

3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Resource exhaustion in Apple macOS

CVE-2020-10005

A resource exhaustion issue was addressed with improved input validation. This issue is fixed in macOS Big Sur 11.0.1. An attacker in a privileged network position may be able to perform denial of service.

Vulnerability class: DoS (Denial of Service)

Published 2021-10-28 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.013 (70.1th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 70th percentile — 70.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.013 · newest: 0.013 · change: 0.000

Affected products

Apple macOS — versions unspecified

Weakness classification (CWE)

CWE-400 — Uncontrolled Resource Consumption

Public proof-of-concept exploits

References

support.apple.com/en-us/HT211931 (Vendor Advisory)
talosintelligence.com/vulnerability_reports/TALOS-2021-1246 (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2020-10005?: CVE-2020-10005 is a medium-severity vulnerability in Apple macOS, classified under Uncontrolled Resource Consumption. CVSS score: 6.5/10. Published 2021-10-28.
How severe is CVE-2020-10005?: Medium severity. CVSS v3 base score is 6.5 out of 10.
Is CVE-2020-10005 known to be exploited?: 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.