What is CVE-2020-18173?

CVE-2020-18173 is a high-severity vulnerability in 1password, classified under Uncontrolled Search Path Element. CVSS score: 7.8/10. Published 2021-07-26.

How severe is CVE-2020-18173?

High severity. CVSS v3 base score is 7.8 out of 10.

Vulnerability in 1password

CVE-2020-18173

A DLL injection vulnerability in 1password.dll of 1Password 7.3.712 allows attackers to execute arbitrary code.

Published 2021-07-26 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.005 (38.5th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 38th percentile — 38.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000

Affected products

1password — versions 7.3.712

Weakness classification (CWE)

CWE-427 — Uncontrolled Search Path Element

References

github.com/GitHubAssessments/CVE_Assessments_11_2019 (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2020-18173?: CVE-2020-18173 is a high-severity vulnerability in 1password, classified under Uncontrolled Search Path Element. CVSS score: 7.8/10. Published 2021-07-26.
How severe is CVE-2020-18173?: High severity. CVSS v3 base score is 7.8 out of 10.