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CVE Record

CVE-2021-44620: A Command Injection vulnerability exits in TOTOLINK A3100R <=V4.1.2cu.5050_B20200504 in adm/ntm.asp via the...

A Command Injection vulnerability exits in TOTOLINK A3100R <=V4.1.2cu.5050_B20200504 in adm/ntm.asp via the hosTime parameters.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

CVE-2021-44620 is a reported command injection flaw in TOTOLINK A3100R router firmware up to V4.1.2cu.5050_B20200504. If an attacker can reach the affected management page, the issue could allow operating-system command execution on the device. Public records do not provide a CVSS score, patch status, or authentication details.

Executive priority

Prioritize review if TOTOLINK A3100R routers exist in the environment, especially at network edges. Command injection on a router can affect traffic control and network trust, but urgency depends on confirmed model, firmware, and administrative exposure.

Technical view

The CVE record describes command injection in adm/ntm.asp via the hosTime parameter on TOTOLINK A3100R <= V4.1.2cu.5050_B20200504. The supplied metadata lists no CWE, CVSS vector, CPE, vendor advisory, or fixed version. Treat impact as potentially serious but validate exposure against device model, firmware, and management-interface accessibility.

Likely exposure

Exposure is likely limited to organizations using TOTOLINK A3100R devices on firmware V4.1.2cu.5050_B20200504 or earlier. Risk rises sharply if the router administration interface is reachable from untrusted networks. The supplied sources do not confirm whether authentication is required.

Exploitation context

The bundle does not show CISA KEV listing or cited evidence of active exploitation. A public Google Drive reference is listed, but the supplied bundle does not provide enough detail to validate exploit maturity, prerequisites, or real-world targeting.

Researcher notes

Evidence is sparse. The CVE description identifies product, version ceiling, endpoint, and parameter, but omits CVSS, CWE, CPEs, authentication state, patch status, and detailed exploit context. Do not assume active exploitation or fixed versions without additional vendor confirmation.

Mitigation direction

  • Check TOTOLINK guidance for fixed firmware or official mitigations.
  • Upgrade affected A3100R firmware if a vendor-supported fix exists.
  • Restrict router administration access to trusted management networks only.
  • Disable any internet-facing administrative access to the router.
  • Replace devices if no supported firmware fix is available.

Validation and detection

  • Inventory TOTOLINK A3100R devices and record firmware versions.
  • Confirm whether firmware is V4.1.2cu.5050_B20200504 or earlier.
  • Verify whether adm/ntm.asp is reachable from untrusted networks.
  • Review administrative logs for unexpected access or configuration changes.
  • Track vendor and CVE records for updated remediation details.
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

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.

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.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2021-44620 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

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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.