CVE-2020-8974
CVE-2020-8974 is a critical-severity vulnerability in Zigor Zgr Tps200 Ng Firmware with a CVSS 3.x base score of 10.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-434.
Key facts
- Severity: Critical (CVSS 3.x base score 10.0)
- EPSS exploit prediction: 1% (49th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-434
- Affected product: Zigor Zgr Tps200 Ng Firmware
- Published:
- Last modified:
Description
In ZGR TPS200 NG 2.00 firmware version and 1.01 hardware version, the firmware upload process does not perform any type of restriction. This allows an attacker to modify it and re-upload it via web with malicious modifications, rendering the device unusable.
Frequently asked questions
- What is CVE-2020-8974?
- In ZGR TPS200 NG 2.00 firmware version and 1.01 hardware version, the firmware upload process does not perform any type of restriction. This allows an attacker to modify it and re-upload it via web with malicious modifications, rendering the device unusable.
- How severe is CVE-2020-8974?
- CVE-2020-8974 has a CVSS 3.x base score of 10.0, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability high.
- Is CVE-2020-8974 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (49th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2020-8974?
- CVE-2020-8974 affects Zigor Zgr Tps200 Ng Firmware. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2020-8974?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
- When was CVE-2020-8974 published?
- CVE-2020-8974 was published on 2022-10-17 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:o:zigor:zgr_tps200_ng_firmware:2.00:*:*:*:*:*:*:*
More vulnerabilities in Zigor Zgr Tps200 Ng Firmware
- CVE-2020-8976 — Critical (CVSS 9.6): The integrated server of the ZGR TPS200 NG on its 2.00 firmware version and 1.01 hardware version, allows a remote…
- CVE-2020-8973 — Critical (CVSS 9.3): ZGR TPS200 NG in its 2.00 firmware version and 1.01 hardware version, does not properly accept specially constructed…
- CVE-2020-8975 — High (CVSS 7.5): ZGR TPS200 NG in its 2.00 firmware version and 1.01 hardware version, allows a remote attacker with access to the web…
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