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CVE Record

CVE-2026-82692: D-Link DNS-340L/DNS-345 iscsi_mgr.cgi os command injection

A vulnerability was found in D-Link DNS-340L and DNS-345 up to 20260717. This affects an unknown part of the file /cgi-bin/iscsi_mgr.cgi. Performing a manipulation of the argument alias/username/password/volume_location results in os command injection. It is possible to initiate the attack remotely. The exploit has been made public and could be used.

CriticalCVSS 9.9Not KEV-listedUpdated
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Glexia's TakeAutomated analysiscritical

Security readout for executives and security teams

Plain-English summary

D-Link DNS-340L and DNS-345 storage devices may allow a low-privileged remote user to execute operating-system commands through the iSCSI management CGI endpoint. Successful exploitation could expose stored data, alter the device, or disrupt service. The supplied record rates this critical at CVSS 9.9.

Executive priority

Treat as an urgent asset-discovery and containment issue, especially for internet-accessible devices or systems holding sensitive data. Prioritize exposure reduction immediately, then obtain vendor remediation guidance. Consider replacement where affected products cannot receive a supported correction.

Technical view

Manipulating alias, username, password, or volume_location inputs to /cgi-bin/iscsi_mgr.cgi can cause OS command injection. The CVSS vector indicates network access, low complexity, low privileges, no user interaction, changed scope, and high confidentiality, integrity, and availability impact. Affected-version wording is not fully clear beyond builds identified through 20260717.

Likely exposure

Exposure is most concerning where the affected CGI endpoint is reachable from the internet or untrusted networks and attackers can obtain low-privileged access. Inventory confirmation is essential because the supplied data describes products up to 20260717 while its structured affected list specifically names 20260717.

Exploitation context

A public exploit reference exists, increasing practical risk. However, the supplied sources do not establish active exploitation, and the CVE is not listed as KEV. Public proof-of-concept availability must not be treated as evidence of attacks in the wild.

Researcher notes

The record maps the flaw to CWE-77 and CWE-78 and assigns CVSS 3.1 score 9.9. Evidence identifies multiple injectable parameters but does not clearly document the authentication role, fixed version, vendor advisory, or observed exploitation. Version assertions should therefore be validated carefully before declaring an asset vulnerable or remediated.

Mitigation direction

  • Inventory all DNS-340L and DNS-345 devices, recording exact firmware and build identifiers.
  • Remove affected devices from direct internet exposure and restrict CGI access to trusted administrative networks.
  • Check D-Link guidance for corrected firmware, mitigations, or retirement instructions; supplied sources name no patch.
  • If no supported correction exists, isolate affected devices and plan replacement based on data and service criticality.
  • Monitor access to the affected endpoint and investigate unusual administrative or system activity.

Validation and detection

  • Verify each device model and firmware build against the CVE record and subsequent vendor guidance.
  • Determine whether /cgi-bin/iscsi_mgr.cgi is reachable from internet-facing or untrusted network paths.
  • Confirm network controls prevent untrusted access while retaining required administrative connectivity.
  • Review available HTTP and system logs for suspicious endpoint requests or unexpected command-related activity.
  • Recheck authoritative records for clarified version ranges, vendor confirmation, and remediation updates.
Prepared
Confidence
medium
Sources
6

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-77: 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 lookup
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.

Open ATT&CK lookup
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
description · low confidence lookup

Credential and access behavior lookup

The CVE wording references authentication or credential exposure, so valid-account and credential-access review may help. 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-2026-82692 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
9.9 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R

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.

4CVSS vectors
6Timeline events
1ADP providers
7Source links

SSVC decision data

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

CVSS vector scores

4 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
9.9CVSS 3.1CriticalCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R3.16VulDB
9.9CVSS 3.0CriticalCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R3.16VulDB
9.4CVSS 4.0CriticalCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P——VulDB
9CVSS 2.0CriticalAV:N/AC:L/Au:S/C:C/I:C/A:C/E:POC/RL:ND/RC:UR810VulDB

Vulnerability scoring details

Base CVSS 4.0 score

9.4Critical
CVSS 4.0 vector shape for CVE-2026-82692Attack VectorAttack ComplexityAttack RequirementsPrivileges RequiredUser InteractionVS ConfidentialityVS IntegrityVS AvailabilitySS ConfidentialitySS IntegritySS Availability

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

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. Source timelineVulDB

    Advisory disclosed

  2. Source timelineVulDB

    VulDB entry created

  3. CVE reservedCVE Program

    The CVE ID was reserved by the assigning CNA.

  4. Source timelineVulDB

    VulDB entry last update

  5. CVE publishedCVE Program

    The CVE record was published.

  6. 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-LinkDNS-340L20260717Listed
D-LinkDNS-34520260717Listed
Weakness

CWE details

CWE-77CWE-78

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

CWE-77 · source CWE mapping

CWE mapping pending import

This CVE carries a CWE mapping that will resolve to a full Glexia CWE intelligence page after the official CWE import is complete.

Open CWE intelligenceSame-CWE CVEs
CWE-78 · source CWE mapping

Improper Neutralization of Special Elements used in an OS Command

Improper Neutralization of Special Elements used in an OS Command represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.

Open CWE intelligenceSame-CWE CVEs