Security readout for executives and security teams
Plain-English summary
Affected D-Link DNS-340L and DNS-345 storage devices may let a highly privileged remote user inject operating-system commands through the Virtual Volume interface. Successful exploitation could compromise stored data, device operation, and connected systems. Public exploit material exists, but the supplied sources do not establish active exploitation.
Executive priority
Treat as an urgent asset-identification and containment issue. Prioritize exposed or business-critical storage devices because compromise could affect data and operations. Do not claim an available patch from this evidence; obtain current remediation or replacement guidance from D-Link.
Technical view
The flaw affects /cgi-bin/virtual_vol.cgi in the Virtual Volume handler. Manipulating f_sharename, f_target, or f_name can cause OS command injection. The CVSS 4.0 score is 9.4 with network reachability, low complexity, high privileges required, no user interaction, and high confidentiality, integrity, and availability impacts.
Likely exposure
Exposure is most likely where a listed DNS-340L or DNS-345 firmware version is deployed and the affected CGI interface is reachable by privileged users. Internet-accessible or broadly reachable management interfaces increase concern. The supplied evidence does not quantify deployed or exposed devices.
Exploitation context
A public exploit reference is listed, supporting proof-of-concept availability and possible misuse. The supplied CVSS vector indicates high privileges are required. This CVE is not identified as CISA KEV, and the sources do not confirm exploitation in operational attacks.
Researcher notes
The supplied record maps versions 1.01B04, 1.03B06, 1.04.B02, and 1.05b04 to both models, while a submission title suggests model-specific version assignments. Validate exact applicability with D-Link. No official patch details, observed-attack evidence, or reliable prevalence data are included.
Mitigation direction
- Inventory DNS-340L and DNS-345 devices and record their exact firmware versions.
- Check current D-Link guidance for supported firmware, patches, replacement, or retirement instructions.
- Restrict device administration to trusted users and dedicated management networks.
- Remove unnecessary internet or untrusted-network access to affected management interfaces.
- Isolate affected devices until vendor-supported remediation or replacement is completed.
Validation and detection
- Confirm each device model and firmware version against the affected list.
- Verify whether /cgi-bin/virtual_vol.cgi is reachable from internet or untrusted networks.
- Review administrative access controls and identify accounts with high privileges.
- Inspect device and network logs for unusual Virtual Volume requests or command execution indicators.
- Confirm remediation using current D-Link guidance without reproducing the public exploit.
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-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 lookupCWE-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 lookupExecution 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 lookupCVE-2026-82688 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
- Critical
- CVSS
- 9.4 (4.0)
- Known Exploited
- No
- Published
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P
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.
SSVC decision data
CVSS vector scores
4 official scoresWe 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:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P——VulDBCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R2.36VulDBCVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R2.36VulDBAV:N/AC:L/Au:M/C:C/I:C/A:C/E:POC/RL:ND/RC:UR6.410VulDBVulnerability scoring details
Base CVSS 4.0 score
9.4CriticalVector: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P
Base CVSS 3.1 score
9.1CriticalVector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R
Base CVSS 3.0 score
9.1CriticalVector: CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R
Base CVSS 2.0 score
8.3HighVector: AV:N/AC:L/Au:M/C:C/I:C/A:C/E:POC/RL:ND/RC:UR
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- Source timelineVulDB
Advisory disclosed
- Source timelineVulDB
VulDB entry created
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- Source timelineVulDB
VulDB entry last update
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- VDB-397176 | D-Link DNS-340L/DNS-345 Virtual Volume virtual_vol.cgi os command injectionCVE reference, VulDB · vdb-entry, technical-description
- VDB-397176 | CTI Indicators (IOB, IOC, TTP, IOA)CVE reference, VulDB · signature, permissions-required
- CVE-2026-82688 | CVE Analysis and ReportCVE reference, VulDB · third-party-advisory
- Submit #894190 | D-Link DNS-340L/DNS-345 ShareCenter DNS-340L REVA 1.01B04; DNS-345 REVA 1.03B06/1.04.B02/1.05b04 HOTFIX OS Command InjectionCVE reference, VulDB · third-party-advisory
- https://github.com/dxz0069/WAVLINK-WN530H4-Command-Injection-in-set_add_routing/blob/main/DLINK-CMD-001-vulndb.mdCVE reference, VulDB · exploit
- https://www.dlink.com/CVE reference, VulDB · product
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.
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.
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.