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CVE Record

CVE-2021-46007: totolink a3100r V5.9c.4577 is vulnerable to os command injection.

totolink a3100r V5.9c.4577 is vulnerable to os command injection. The backend of a page is executing the "ping" command, and the input field does not adequately filter special symbols. This can lead to command injection attacks.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

CVE-2021-46007 describes an OS command injection issue in TOTOLINK A3100R firmware V5.9c.4577. A ping function in the device backend does not adequately filter special symbols, which may let an attacker run unintended system commands. Public severity and scoring data are incomplete.

Executive priority

Treat this as a priority for asset owners using the named router firmware, because command injection on network infrastructure can affect availability and trust boundaries. Urgency depends on whether management access is exposed.

Technical view

The described flaw is in backend handling for a ping command on TOTOLINK A3100R V5.9c.4577. Input sanitization is inadequate for shell metacharacters, creating command injection risk. The provided CVE data does not include CVSS, CWE mapping, authentication requirements, network reachability, or vendor remediation details.

Likely exposure

Exposure is limited to environments running TOTOLINK A3100R firmware V5.9c.4577, especially if the device management interface or diagnostic ping page is reachable from untrusted networks.

Exploitation context

The source bundle does not show CISA KEV listing or confirmed active exploitation. The referenced issue suggests command injection through a ping feature, but the evidence provided does not establish exploit prevalence or required privileges.

Researcher notes

Evidence is sparse: the CVE names the model, firmware, and vulnerable ping backend behavior, but omits CVSS, CWE, patch status, and exploitation confirmation. Avoid broad product conclusions beyond TOTOLINK A3100R V5.9c.4577.

Mitigation direction

  • Inventory TOTOLINK A3100R devices and identify firmware V5.9c.4577.
  • Restrict router management interfaces to trusted administrative networks only.
  • Disable remote administration if it is not required.
  • Check TOTOLINK or device support channels for official firmware guidance.
  • Replace unsupported exposed devices if no vendor fix is available.

Validation and detection

  • Confirm whether any TOTOLINK A3100R devices run firmware V5.9c.4577.
  • Verify the management interface is not internet-accessible.
  • Review administrative access logs for unusual diagnostic or ping-page activity.
  • Check change records for unexpected router configuration or firmware changes.
  • Track vendor advisories before performing intrusive validation.
Prepared
Confidence
medium
Sources
3

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

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ATT&CK lookup starting points

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description · low confidence lookup

Execution behavior lookup

The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

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cve · low confidence lookup

CVE-2021-46007 mapping review

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

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.

0CVSS vectors
3Timeline events
1ADP providers
2Source links

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

  1. CVE reservedCVE Program

    The CVE ID was reserved by the assigning CNA.

  2. CVE publishedCVE Program

    The CVE record was published.

  3. CVE updatedCVE Program

    The CVE record metadata indicates this as the latest update time.

ADP provider summaries

CVECVE Program Container

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.