How severe is CVE-2021-30127?

CVE-2021-30127 has a CVSS 3.x base score of 7.3, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2021-30127 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (54th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-30127?

CVE-2021-30127 affects Terra-master F2-210 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-30127?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2021-30127 published?

CVE-2021-30127 was published on 2021-04-03 and last updated on 2026-06-17.

CVE-2021-30127

CVE-2021-30127 is a high-severity vulnerability in Terra-master F2-210 Firmware with a CVSS 3.x base score of 7.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: High (CVSS 3.x base score 7.3)
CVSS v2: 7.5
EPSS exploit prediction: 1% (54th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Terra-master F2-210 Firmware
Published: 2021-04-03
Last modified: 2026-06-17

Description

TerraMaster F2-210 devices through 2021-04-03 use UPnP to make the admin web server accessible over the Internet on TCP port 8181, which is arguably inconsistent with the "It is only available on the local network" documentation. NOTE: manually editing /etc/upnp.json provides a partial but undocumented workaround.

Frequently asked questions

What is CVE-2021-30127?: TerraMaster F2-210 devices through 2021-04-03 use UPnP to make the admin web server accessible over the Internet on TCP port 8181, which is arguably inconsistent with the "It is only available on the local network" documentation. NOTE: manually editing /etc/upnp.json provides a partial but undocumented workaround.
How severe is CVE-2021-30127?: CVE-2021-30127 has a CVSS 3.x base score of 7.3, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2021-30127 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (54th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-30127?: CVE-2021-30127 affects Terra-master F2-210 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-30127?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2021-30127 published?: CVE-2021-30127 was published on 2021-04-03 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:terra-master:f2-210_firmware:*:*:*:*:*:*:*:*

More vulnerabilities in Terra-master F2-210 Firmware

CVE-2019-18195 — High (CVSS 8.8): An issue was discovered on TerraMaster FS-210 4.0.19 devices. Normal users can use 1.user.php for privilege elevation.

All CVEs affecting Terra-master F2-210 Firmware →