Is CVE-2020-10826 in the CISA KEV catalog?

No. CVE-2020-10826 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2020-10826?

CVE-2020-10826 has a CVSS v3 base score of 9.8 (CRITICAL).

What is the EPSS score for CVE-2020-10826?

CVE-2020-10826 has an EPSS score of 39.39% (98th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2020-10826?

Upgrade vigor2960 firmware to 1.5.1 or later. Fixes are available for 3 affected products.

CVE & CISA-KEV Catalog

CVE-2020-10826

CRITICALEPSS 98th pctl

9.8

CVSS v3

NVD

Description

/cgi-bin/activate.cgi on Draytek Vigor3900, Vigor2960, and Vigor300B devices before 1.5.1 allows remote attackers to achieve command injection via a remote HTTP request in DEBUG mode.

CWE-77Command Injection

How to fix

Remediation Available

vigor2960 firmwareNVD

Affected:< 1.5.1Fixed in:1.5.1CVE-2020-10826derived from NVD

vigor300b firmwareNVD

Affected:< 1.5.1Fixed in:1.5.1CVE-2020-10826derived from NVD

vigor3900 firmwareNVD

Affected:< 1.5.1Fixed in:1.5.1CVE-2020-10826derived from NVD

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploit Intelligence

39.39%probability of exploitation in 30 days

98thpercentile

Very high risk: more likely to be exploited than 98% of all known CVEs.

References

Exploit1

slashd.ga

Vendor Advisory1

draytek.com

Related Vulnerabilities

Other CWE-77 (Command Injection) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2024-3400	Critical	10.0	100%	KEV + Ransom	-
CVE-2024-21887	Critical	9.1	100%	KEV + Ransom	-
CVE-2023-1671	Critical	9.8	100%	KEV	Fix
CVE-2023-1389	High	8.8	100%	KEV	Fix
CVE-2021-1498	Critical	9.8	100%	KEV	Fix
CVE-2012-1823	Critical	9.8	100%	KEV	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-05-05.