How severe is CVE-2020-6760?

CVE-2020-6760 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-2020-6760 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (75th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-6760?

CVE-2020-6760 affects Schmid-telecom Zi 620 V400 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-6760?

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-2020-6760 published?

CVE-2020-6760 was published on 2020-02-06 and last updated on 2026-06-17.

CVE-2020-6760

CVE-2020-6760 is a critical-severity vulnerability in Schmid-telecom Zi 620 V400 Firmware with a CVSS 3.x base score of 9.8. 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-78.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 10.0
EPSS exploit prediction: 2% (75th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-78
Affected product: Schmid-telecom Zi 620 V400 Firmware
Published: 2020-02-06
Last modified: 2026-06-17

Description

Schmid ZI 620 V400 VPN 090 routers allow an attacker to execute OS commands as root via shell metacharacters to an entry on the SSH subcommand menu, as demonstrated by ping.

Frequently asked questions

What is CVE-2020-6760?: Schmid ZI 620 V400 VPN 090 routers allow an attacker to execute OS commands as root via shell metacharacters to an entry on the SSH subcommand menu, as demonstrated by ping.
How severe is CVE-2020-6760?: CVE-2020-6760 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-2020-6760 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (75th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-6760?: CVE-2020-6760 affects Schmid-telecom Zi 620 V400 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-6760?: 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-2020-6760 published?: CVE-2020-6760 was published on 2020-02-06 and last updated on 2026-06-17.

References

https://github.com/0xedh/someshit/blob/master/CVE-2020-6760.md

Affected products (1)

cpe:2.3:o:schmid-telecom:zi_620_v400_firmware:090:*:*:*:*:*:*:*

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