What is CVE-2022-2856?

CVE-2022-2856 is a medium-severity vulnerability in Apple macOS, classified under Improper Input Validation. CVSS score: 6.5/10. Published 2022-09-26.

How severe is CVE-2022-2856?

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

Is CVE-2022-2856 known to be exploited?

Yes. CVE-2022-2856 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-08-18), indicating it is being actively exploited. 5 public proof-of-concept repositories are indexed.

Improper input validation in Apple macOS

CVE-2022-2856

Insufficient validation of untrusted input in Intents in Google Chrome on Android prior to 104.0.5112.101 allowed a remote attacker to arbitrarily browse to a malicious website via a crafted HTML page.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

Published 2022-09-26 · last modified 2026-06-17.

CVSS v3 metric

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

EPSS exploit prediction

EPSS: 0.046 (91.5th percentile), scored 2026-10-19.

Low probability of exploitation in the next 30 days, but still tracked. 91st percentile — 91.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.045 · newest: 0.046 · change: +0.000

Affected products

Weakness classification (CWE)

CWE-20 — Improper Input Validation

CISA KEV (Known Exploited Vulnerabilities)

This CVE is on the CISA KEV catalog, added on 2022-08-18. CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.

BOD 22-01 due date: 2022-09-08.

Required action: Apply updates per vendor instructions.

Public proof-of-concept exploits

References

chromereleases.googleblog.com/2022/08/stable-channel-update-for-desktop_16.html (Patch, Release Notes, Vendor Advisory)
crbug.com/1345630 (Exploit, Mailing List, Issue Tracking, Vendor Advisory)
lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory, Mailing List)
134c704f-9b21-4f2e-91b3-4a467353bcc0 (US Government Resource)

Frequently asked questions

What is CVE-2022-2856?: CVE-2022-2856 is a medium-severity vulnerability in Apple macOS, classified under Improper Input Validation. CVSS score: 6.5/10. Published 2022-09-26.
How severe is CVE-2022-2856?: Medium severity. CVSS v3 base score is 6.5 out of 10.
Is CVE-2022-2856 known to be exploited?: Yes. CVE-2022-2856 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-08-18), indicating it is being actively exploited. 5 public proof-of-concept repositories are indexed.