Security readout for executives and security teams
Plain-English summary
CVE-2020-9377 lets an authenticated attacker run operating-system commands on unsupported D-Link DIR-610 routers. Because routers sit at network edges, compromise can affect confidentiality, traffic integrity, and availability. CISA lists this CVE in KEV, so treat any remaining DIR-610 deployment as urgent legacy risk.
Executive priority
Prioritize replacement or isolation. This is a known-exploited command-execution issue on unsupported edge equipment, so normal patch management may not be enough. Business risk is highest where DIR-610 devices protect offices, remote sites, or sensitive network segments.
Technical view
The CVE describes command injection in D-Link DIR-610 through the cmd parameter to command.php. CVSS 3.1 is 8.8: network reachable, low complexity, low privileges required, no user interaction, and high impact to confidentiality, integrity, and availability. Sources state affected products are no longer supported.
Likely exposure
Exposure is most likely in environments still running D-Link DIR-610 devices, especially where administrative access is reachable from untrusted networks. The provided affected-product metadata is incomplete, so validation should rely on asset inventory and vendor advisory checks.
Exploitation context
Active exploitation is supported by CISA KEV listing for CVE-2020-9377. Public reference material also exists, but the supplied evidence does not establish a vendor patch for supported DIR-610 devices; it states the product is no longer supported.
Researcher notes
The source bundle identifies CWE-78 and CVSS 8.8 with PR:L. Product metadata is sparse, but the narrative clearly names D-Link DIR-610. Avoid assuming other D-Link models are affected unless vendor or CVE sources explicitly confirm them.
Mitigation direction
- Identify and retire any D-Link DIR-610 devices still in service.
- Check D-Link advisory SAP10182 for vendor-specific guidance.
- Remove internet exposure to router administration interfaces.
- Restrict management access to trusted administrative networks only.
- Replace unsupported devices with supported hardware and current firmware.
Validation and detection
- Search asset inventory for D-Link DIR-610 models.
- Confirm whether any DIR-610 management interface is externally reachable.
- Review firewall and remote-management rules for legacy router access.
- Check device logs for unexpected administrative changes or command activity.
- Document unsupported devices as remediation exceptions until replaced.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-78: Command execution behavior lookup
Command injection weaknesses can lead defenders to review execution techniques and command interpreter telemetry. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2020-9377 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- High
- CVSS
- 8.8 (3.1)
- Known Exploited
- Yes
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CISA KEV status
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H2.85.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
8.8HighVector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://www.dlink.com.br/produto/dir-610/CVE reference · x_refsource_MISC
- https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10182CVE reference · x_refsource_CONFIRM
- https://gist.github.com/GouveaHeitor/131557f9de7d571f118f59805df852dcCVE reference · x_refsource_MISC
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-9377CVE reference · government-resource
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.