CVE-2020-22159Public exploitNetwork attack vector

Authenticated webshell upload via unrestricted file handling

Published Jul 18, 2023 · Updated Oct 28, 2024

Arbitrary file upload in Evertz 3080IPX, 7801FC, and 7890IXG firmware allows remote authenticated users to write files over HTTP. The IEEE-UP001 upload handler fails to restrict attacker-controlled file types and destinations, enabling webshell placement or critical-file overwrite. Valid web-interface credentials are required; executable uploads grant persistent command execution, while overwrites can corrupt device operation.

CVSS severity8.8
High
EPSS probability0.98%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Arbitrary file upload in Evertz 3080IPX, 7801FC, and 7890IXG firmware allows remote authenticated users to write files over HTTP. The IEEE-UP001 upload handler fails to restrict attacker-controlled file types and destinations, enabling webshell placement or critical-file overwrite. Valid web-interface credentials are required; executable uploads grant persistent command execution, while overwrites can corrupt device operation.

The record

CVE
CVE-2020-22159
Published
Jul 18, 2023
Updated
Oct 28, 2024
Vendor
Evertz
Product
3080IPX-10G
Classifications
CWE-434, T1505.003
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 18, 2023CVE publishedPublication date reported by the CVE source.
  2. Oct 28, 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?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=exe-guest-v1.2-r26125

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Evertz · 3080IPX-10Gversion=exe-guest-v1.2-r26125
Evertz · 7890IXGversion=v494
Evertz · 7801FCversion=1.3_build_27

Published CVSS scores

8.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-434Unrestricted Upload of File with Dangerous Type
T1505.003Server Software Component: Web Shell

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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