How severe is CVE-2020-19664?

CVE-2020-19664 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2020-19664 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-19664?

CVE-2020-19664 affects Draytek Vigor2960 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-19664?

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-2020-19664 published?

CVE-2020-19664 was published on 2020-12-31 and last updated on 2026-06-17.

CVE-2020-19664

CVE-2020-19664 is a high-severity vulnerability in Draytek Vigor2960 Firmware with a CVSS 3.x base score of 8.8. 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: High (CVSS 3.x base score 8.8)
CVSS v2: 6.5
EPSS exploit prediction: 5% (92nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-78
Affected product: Draytek Vigor2960 Firmware
Published: 2020-12-31
Last modified: 2026-06-17

Description

DrayTek Vigor2960 1.5.1 allows remote command execution via shell metacharacters in a toLogin2FA action to mainfunction.cgi.

Frequently asked questions

What is CVE-2020-19664?: DrayTek Vigor2960 1.5.1 allows remote command execution via shell metacharacters in a toLogin2FA action to mainfunction.cgi.
How severe is CVE-2020-19664?: CVE-2020-19664 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2020-19664 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-19664?: CVE-2020-19664 affects Draytek Vigor2960 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-19664?: 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-2020-19664 published?: CVE-2020-19664 was published on 2020-12-31 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:draytek:vigor2960_firmware:*:*:*:*:*:*:*:*

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