CVE-2020-36283Network attack vector

Workstation commands via origin-unchecked configuration upload

Published Mar 24, 2021 · Updated Aug 4, 2024

CSRF in HID OMNIKEY 5427 and 5127 readers using EEM allows remote attackers to upload device configurations through a malicious site. The integrated webserver’s configuration upload handler accepts requests without checking their origin, letting a hostile page submit a configuration file. An authenticated workstation user must visit the site while EEM is enabled; uploaded configurations can issue commands to the connected workstation.

CVSS severity9.6
Critical
EPSS probability0.73%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

CSRF in HID OMNIKEY 5427 and 5127 readers using EEM allows remote attackers to upload device configurations through a malicious site. The integrated webserver’s configuration upload handler accepts requests without checking their origin, letting a hostile page submit a configuration file. An authenticated workstation user must visit the site while EEM is enabled; uploaded configurations can issue commands to the connected workstation.

The record

CVE
CVE-2020-36283
Published
Mar 24, 2021
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-352, T1189
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 24, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

8.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
9.6HID GlobalCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
6.8NIST NVDAV:N/AC:M/Au:N/C:P/I:P/A:P

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-352Cross-Site Request Forgery (CSRF)
T1189Drive-by Compromise

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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