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CVE Record

CVE-2026-71944: D-Link DWR-M961 Command Injection via /boafrm/formLtefotaUpgradeQuectel

D-Link DWR-M961 devices with hardware version C1 and firmware version before 1.1.5_C1_202607071108 contain a command injection vulnerability in the /boafrm/formLtefotaUpgradeQuectel interface. A remote attacker can inject arbitrary malicious commands into the fota_url field, resulting in command execution with root privileges.

CriticalCVSS 9.8Not KEV-listedUpdated
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Glexia's TakeAutomated analysiscritical

Security readout for executives and security teams

Plain-English summary

A vulnerable D-Link DWR-M961 router can let an unauthenticated remote attacker run operating-system commands as root. Successful compromise could expose traffic and credentials, alter router settings, install persistent malware, or disrupt connectivity. The flaw affects hardware revision C1 running firmware earlier than 1.1.5_C1_202607071108.

Executive priority

Treat as an immediate remediation priority for any reachable affected router. Identify C1 units, remove untrusted management exposure, and upgrade promptly. Because compromise grants root-level control over a network-edge device, delayed remediation could affect confidentiality, business connectivity, and trust in traffic passing through the router.

Technical view

CVE-2026-71944 is CWE-78 command injection in /boafrm/formLtefotaUpgradeQuectel. Unsanitized input in the fota_url field can reach command execution with root privileges. CVSS 3.1 is 9.8: network-accessible, low complexity, no privileges or user interaction, with high confidentiality, integrity, and availability impact.

Likely exposure

Exposure is limited to DWR-M961 hardware revision C1 with firmware before 1.1.5_C1_202607071108. Risk is greatest when the affected interface is reachable from the internet or another untrusted network. The supplied sources do not establish whether WAN management is enabled by default, so organizations must verify actual reachability and access controls.

Exploitation context

The supplied record does not identify this CVE as being in CISA KEV and provides no evidence of active exploitation. That absence does not prove exploitation is not occurring. The vulnerability requires no authentication or user interaction when the interface is reachable, making exposed affected devices attractive targets.

Researcher notes

The affected parameter is fota_url within a Quectel FOTA upgrade handler. The stated trust-boundary failure permits unauthenticated network input to reach root-level command execution. Public-source evidence supplied here does not describe authentication configuration, default interface exposure, exploitation telemetry, indicators of compromise, or technical patch details beyond the corrected firmware threshold.

Mitigation direction

  • Upgrade affected C1 devices to D-Link firmware 1.1.5_C1_202607071108 or a later vendor-approved release.
  • Disable internet-facing administration and restrict management access to trusted networks.
  • Replace devices that cannot receive or reliably retain the corrected firmware.
  • Review D-Link's advisory for model-specific installation guidance and additional mitigations.

Validation and detection

  • Inventory DWR-M961 devices and confirm each unit's hardware revision and installed firmware version.
  • Verify the affected interface is not reachable from internet or guest-network segments.
  • Confirm upgraded devices report firmware 1.1.5_C1_202607071108 or later after reboot.
  • Review router and perimeter logs for unexpected requests to the affected interface or unexplained configuration changes.
  • Use non-destructive authenticated checks; avoid command-injection testing on production routers.
Prepared
Confidence
high
Sources
5

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.

cwe · medium confidence lookup

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.

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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.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2026-71944 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
Critical
CVSS
9.8 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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.

2CVSS vectors
3Timeline events
1ADP providers
4Source links

SSVC decision data

CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: noneAutomatable: noTechnical Impact: total

CVSS vector scores

2 official scores

We 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.

ScoreVersionSeverityVectorExploitImpactSource
9.8CVSS 3.1CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H3.95.9VulnCheck
9.3CVSS 4.0CriticalCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N——VulnCheck

Vulnerability scoring details

Base CVSS 4.0 score

9.3Critical
CVSS 4.0 vector shape for CVE-2026-71944Attack VectorAttack ComplexityAttack RequirementsPrivileges RequiredUser InteractionVS ConfidentialityVS IntegrityVS AvailabilitySS ConfidentialitySS IntegritySS Availability

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Attack Requirements
NonePresent
Privileges Required
NoneLowHigh
User Interaction
NonePassiveActive
VS Confidentiality
HighLowNone
VS Integrity
HighLowNone
VS Availability
HighLowNone
SS Confidentiality
HighLowNone
SS Integrity
HighLowNone
SS Availability
HighLowNone

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

CISA-ADPCISA ADP Vulnrichment
other:ssvc

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
D-Link CorporationDWR-M9610affected
Weakness

CWE details

CWE-78

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