CVE-2020-8976Network attack vector

Victim-authorized actions via forged web requests

Published Oct 17, 2022 · Updated Apr 23, 2025

Cross-site request forgery in Zigor ZGR TPS 200 NG firmware 2.00 allows remote attackers to act with a victim's permissions. The integrated web server accepts a malicious state-changing request under the victim's active authenticated session without verifying its origin. Exploitation requires an active session and victim interaction, and successful requests can perform any device action available to that account.

CVSS severity9.6
Critical
EPSS probability0.51%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site request forgery in Zigor ZGR TPS 200 NG firmware 2.00 allows remote attackers to act with a victim's permissions. The integrated web server accepts a malicious state-changing request under the victim's active authenticated session without verifying its origin. Exploitation requires an active session and victim interaction, and successful requests can perform any device action available to that account.

The record

CVE
CVE-2020-8976
Published
Oct 17, 2022
Updated
Apr 23, 2025
Vendor
Zigor
Product
ZGR TPS 200 NG
Classifications
CWE-352, T1204
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 17, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 23, 2025Record 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=1.01 hardware version 1.01
  2. Affected versionversion=2.00 firmware version 2.00

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Zigor · ZGR TPS 200 NGversion=1.01 hardware version 1.01; version=2.00 firmware version 2.00

Published CVSS scores

9.6INCIBECVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
8.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-352Cross-Site Request Forgery (CSRF)
T1204User Execution

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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