What is CVE-2020-6760?

CVE-2020-6760 is a critical-severity vulnerability in Schmid-Telecom Zi 620 V400, classified under OS Command Injection. CVSS score: 9.8/10. Published 2020-02-06.

How severe is CVE-2020-6760?

Critical severity. CVSS v3 base score is 9.8 out of 10.

RCE in Schmid-Telecom Zi 620 V400

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.

Vulnerability class: Command Injection (OS Command Injection)

Published 2020-02-06 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.017 (76.5th percentile), scored 2026-10-02.

Low probability of exploitation in the next 30 days, but still tracked. 77th percentile — 76.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.017 · newest: 0.017 · change: 0.000

Affected products

Schmid-Telecom Zi 620 V400
Schmid-Telecom Zi 620 V400 Firmware — versions 090

Weakness classification (CWE)

CWE-78 — OS Command Injection

References

github.com/0xedh/someshit/blob/master/CVE-2020-6760.md (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2020-6760?: CVE-2020-6760 is a critical-severity vulnerability in Schmid-Telecom Zi 620 V400, classified under OS Command Injection. CVSS score: 9.8/10. Published 2020-02-06.
How severe is CVE-2020-6760?: Critical severity. CVSS v3 base score is 9.8 out of 10.