How severe is CVE-2020-6627?

CVE-2020-6627 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2020-6627 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 12% (96th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-6627?

CVE-2020-6627 primarily affects Seagate Stcg2000300 Firmware. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2020-6627?

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-2020-6627 published?

CVE-2020-6627 was published on 2022-12-06 and last updated on 2026-06-17.

CVE-2020-6627

CVE-2020-6627 is a critical-severity vulnerability in Seagate Stcg2000300 Firmware with a CVSS 3.x base score of 9.8. Its EPSS exploit-prediction score of 12% places it in the 96th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-78.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 12% (96th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-78
Affected product: Seagate Stcg2000300 Firmware
Published: 2022-12-06
Last modified: 2026-06-17

Description

The web-management application on Seagate Central NAS STCG2000300, STCG3000300, and STCG4000300 devices allows OS command injection via mv_backend_launch in cirrus/application/helpers/mv_backend_helper.php by leveraging the "start" state and sending a check_device_name request.

Frequently asked questions

What is CVE-2020-6627?: The web-management application on Seagate Central NAS STCG2000300, STCG3000300, and STCG4000300 devices allows OS command injection via mv_backend_launch in cirrus/application/helpers/mv_backend_helper.php by leveraging the "start" state and sending a check_device_name request.
How severe is CVE-2020-6627?: CVE-2020-6627 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2020-6627 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 12% (96th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-6627?: CVE-2020-6627 primarily affects Seagate Stcg2000300 Firmware. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2020-6627?: 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-2020-6627 published?: CVE-2020-6627 was published on 2022-12-06 and last updated on 2026-06-17.

References

Affected products (3)

cpe:2.3:o:seagate:stcg2000300_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:seagate:stcg3000300_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:seagate:stcg4000300_firmware:-:*:*:*:*:*:*:*

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