How severe is CVE-2020-6842?

CVE-2020-6842 has a CVSS 3.x base score of 7.2, rated high severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2020-6842 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (81st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-6842?

CVE-2020-6842 affects Dlink Dch-m225 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-6842?

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-2020-6842 published?

CVE-2020-6842 was published on 2020-02-21 and last updated on 2026-06-17.

CVE-2020-6842

CVE-2020-6842 is a high-severity vulnerability in Dlink Dch-m225 Firmware with a CVSS 3.x base score of 7.2. 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 7.2)
CVSS v2: 9.0
EPSS exploit prediction: 2% (81st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-78
Affected product: Dlink Dch-m225 Firmware
Published: 2020-02-21
Last modified: 2026-06-17

Description

D-Link DCH-M225 1.05b01 and earlier devices allow remote authenticated admins to execute arbitrary OS commands via shell metacharacters in the media renderer name.

Frequently asked questions

What is CVE-2020-6842?: D-Link DCH-M225 1.05b01 and earlier devices allow remote authenticated admins to execute arbitrary OS commands via shell metacharacters in the media renderer name.
How severe is CVE-2020-6842?: CVE-2020-6842 has a CVSS 3.x base score of 7.2, rated high severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2020-6842 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (81st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-6842?: CVE-2020-6842 affects Dlink Dch-m225 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-6842?: 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-2020-6842 published?: CVE-2020-6842 was published on 2020-02-21 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:dlink:dch-m225_firmware:*:*:*:*:*:*:*:*

More vulnerabilities in Dlink Dch-m225 Firmware

CVE-2020-6841 — Critical (CVSS 9.8): D-Link DCH-M225 1.05b01 and earlier devices allow remote attackers to execute arbitrary OS commands via shell…

All CVEs affecting Dlink Dch-m225 Firmware →

Other CWE-78 (OS Command Injection) vulnerabilities

CVE-2026-56004 — Critical (CVSS 10.0): A shellcode injection in the mercurial handler of the obs tar_scm source service before version 0.12.4 could be used by…
CVE-2026-56415 — Critical (CVSS 10.0): Storage Concentrator (SC & SCVM) contains a command injection vulnerability within the debug.pl script that is…
CVE-2026-56413 — Critical (CVSS 10.0): Storage Concentrator (SC & SCVM) contains a command injection vulnerability in the ms_service.pl service, which listens…
CVE-2026-49869 — Critical (CVSS 10.0): Kestra is an open-source, event-driven orchestration platform. Prior to 1.0.45 and 1.3.21, AuthenticationFilter in…
CVE-2026-49261 — Critical (CVSS 10.0): MariaDB server is a community developed fork of MySQL server. Versions 10.6.1 through 10.6.26, 10.11.1 through…
CVE-2026-10520 — Critical (CVSS 10.0): An OS Command Injection vulnerability in Ivanti Sentry before the R10.5.2, R10.6.2 and R10.7.1 versions allows a…

Browse all CWE-78 (OS Command Injection) vulnerabilities →