How severe is CVE-2020-9377?

CVE-2020-9377 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-2020-9377 being actively exploited?

Yes. CVE-2020-9377 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2022-03-25, which means active exploitation has been confirmed. It should be prioritised for remediation.

What products are affected by CVE-2020-9377?

CVE-2020-9377 affects Dlink Dir-610 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-9377?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.

Does CVE-2020-9377 have an EU (EUVD) identifier?

Yes. CVE-2020-9377 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2020-30198. It is also flagged as exploited in the EUVD (since 2022-03-25).

When was CVE-2020-9377 published?

CVE-2020-9377 was published on 2020-07-09 and last updated on 2026-06-17.

CVE-2020-9377

CVE-2020-9377 is a high-severity vulnerability in Dlink Dir-610 Firmware with a CVSS 3.x base score of 8.8. It is listed in CISA's Known Exploited Vulnerabilities (KEV) catalog, confirming it has been exploited in the wild (added 2022-03-25). 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: 21% (97th percentile)
Actively exploited: Yes — listed in CISA KEV (added 2022-03-25)
EU (EUVD) id: EUVD-2020-30198
EU exploitation: Flagged exploited in the ENISA EU Vulnerability Database (since 2022-03-25)
Weakness: CWE-78
Affected product: Dlink Dir-610 Firmware
Published: 2020-07-09
Last modified: 2026-06-17

Description

D-Link DIR-610 devices allow Remote Command Execution via the cmd parameter to command.php. NOTE: This vulnerability only affects products that are no longer supported by the maintainer

Frequently asked questions

What is CVE-2020-9377?: D-Link DIR-610 devices allow Remote Command Execution via the cmd parameter to command.php. NOTE: This vulnerability only affects products that are no longer supported by the maintainer
How severe is CVE-2020-9377?: CVE-2020-9377 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-2020-9377 being actively exploited?: Yes. CVE-2020-9377 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2022-03-25, which means active exploitation has been confirmed. It should be prioritised for remediation.
What products are affected by CVE-2020-9377?: CVE-2020-9377 affects Dlink Dir-610 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-9377?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.
Does CVE-2020-9377 have an EU (EUVD) identifier?: Yes. CVE-2020-9377 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2020-30198. It is also flagged as exploited in the EUVD (since 2022-03-25).
When was CVE-2020-9377 published?: CVE-2020-9377 was published on 2020-07-09 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:dlink:dir-610_firmware:-:*:*:*:*:*:*:*

More vulnerabilities in Dlink Dir-610 Firmware

CVE-2018-25115 — Critical (CVSS 9.8): Multiple D-Link DIR-series routers, including DIR-110, DIR-412, DIR-600, DIR-610, DIR-615, DIR-645, and DIR-815…
CVE-2020-9376 — High (CVSS 7.5): D-Link DIR-610 devices allow Information Disclosure via SERVICES=DEVICE.ACCOUNT%0AAUTHORIZED_GROUP=1 to getcfg.php.…

All CVEs affecting Dlink Dir-610 Firmware →

Other CWE-78 (OS Command Injection) vulnerabilities

CVE-2026-19188 — Critical (CVSS 10.0): A critical OS command injection vulnerability has been identified in the Haiwell IoT Cloud HMI Gateway product. The…
CVE-2026-48362 — Critical (CVSS 10.0): ColdFusion is affected by an Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')…
CVE-2026-16812 — Critical (CVSS 10.0): VeloCloud Orchestrator (VCO) on-prem has a security issue where this issue may allow a remote attacker to access…
CVE-2026-6516 — Critical (CVSS 10.0): Zohocorp ManageEngine ADAudit Plus versions before 8606 are affected by Unauthenticated Remote code execution due to…
CVE-2026-46339 — Critical (CVSS 10.0): 9Router is an AI router & token saver. From 0.4.30 until 0.4.37, 9Router's src/proxy.js middleware did not protect…
CVE-2026-59726 — Critical (CVSS 10.0): Ruflo is an agent meta-harness for Claude Code and Codex. Prior to 3.16.3, ruflo's default docker-compose deployment…

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