What is CVE-2019-8842?

CVE-2019-8842 is a low-severity vulnerability in Apple macOS, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 3.3/10. Published 2020-10-27.

How severe is CVE-2019-8842?

Low severity. CVSS v3 base score is 3.3 out of 10.

Buffer overflow in Apple macOS

CVE-2019-8842

A buffer overflow was addressed with improved bounds checking. This issue is fixed in macOS Catalina 10.15.2, Security Update 2019-002 Mojave, and Security Update 2019-007 High Sierra. In certain configurations, a remote attacker may be able to submit arbitrary print jobs.

Vulnerability class: Buffer Overflow

Published 2020-10-27 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 3.3 (Low). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N.

EPSS exploit prediction

EPSS: 0.020 (80.3th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 80th percentile — 80.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.020 · newest: 0.020 · change: 0.000

Affected products

Apple macOS — versions unspecified
Apple Mac OS X

Weakness classification (CWE)

CWE-120 — Buffer Copy without Checking Size of Input (Classic Buffer Overflow)

References

support.apple.com/en-us/HT210788 (Release Notes, Vendor Advisory)
lists.apache.org/thread.html/rf9fa47ab66495c78bb4120b0754dd9531ca2ff0430f6685ac… (mailing-list)

Frequently asked questions

What is CVE-2019-8842?: CVE-2019-8842 is a low-severity vulnerability in Apple macOS, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 3.3/10. Published 2020-10-27.
How severe is CVE-2019-8842?: Low severity. CVSS v3 base score is 3.3 out of 10.