What is CVE-2020-36283?

CVE-2020-36283 is a critical-severity vulnerability in Hidglobal Omnikey 5127, classified under Cross-Site Request Forgery (CSRF). CVSS score: 9.6/10. Published 2021-03-24.

How severe is CVE-2020-36283?

Critical severity. CVSS v3 base score is 9.6 out of 10.

CSRF in Hidglobal Omnikey 5127

CVE-2020-36283

HID OMNIKEY 5427 and OMNIKEY 5127 readers are vulnerable to CSRF when using the EEM driver (Ethernet Emulation Mode). By persuading an authenticated user to visit a malicious Web site, a remote attacker could send a malformed HTTP request to upload a configuration file to the device. An attacker could exploit this vulnerability to perform cross-site scripting attacks, Web cache poisoning, and other malicious activities.

Vulnerability class: CSRF (Cross-Site Request Forgery)

Published 2021-03-24 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.6 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.007 (52.3th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 52nd percentile — 52.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000

Affected products

Weakness classification (CWE)

CWE-352 — Cross-Site Request Forgery (CSRF)

References

exchange.xforce.ibmcloud.com/vulnerabilities/198443 (VDB Entry, Third Party Advisory)
www.hidglobal.com/sites/default/files/resource_files/hid-psa-2020-01-omnikey-cs… (Mitigation, Vendor Advisory)

Frequently asked questions

What is CVE-2020-36283?: CVE-2020-36283 is a critical-severity vulnerability in Hidglobal Omnikey 5127, classified under Cross-Site Request Forgery (CSRF). CVSS score: 9.6/10. Published 2021-03-24.
How severe is CVE-2020-36283?: Critical severity. CVSS v3 base score is 9.6 out of 10.