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CVE Record

CVE-2026-93958: D-Link R95 DHMAPI ssi system os command injection

A vulnerability was found in D-Link R95 BE9500_1.00.16. This vulnerability affects the function system of the file /bin/ssi of the component DHMAPI. The manipulation of the argument NTPServer results in os command injection. The attack can be executed remotely. The exploit has been made public and could be used.

CriticalCVSS 9.4Not KEV-listedUpdated
Glexia's TakeAutomated analysiscritical

Security readout for executives and security teams

Plain-English summary

A flaw in D-Link R95 firmware could let a remote attacker with high privileges run operating-system commands through a time-server setting. Successful exploitation could compromise device data and operation. The supplied record rates it critical and reports a public exploit, but does not establish active attacks or identify a confirmed fix.

Executive priority

Promptly identify affected devices and assign an owner to confirm vendor remediation. Prioritize systems with broadly reachable management interfaces or weak privileged-access controls. Critical reported impact and public exploit availability justify urgent assessment, while the high-privilege prerequisite and absence of documented active exploitation should inform response scope.

Technical view

The supplied record identifies OS command injection through the NTPServer argument reaching the system function in /bin/ssi within DHMAPI. It lists firmware BE9500_1.00.16 and CWE-77/CWE-78. The CVSS 4.0 score is 9.4: network access, low complexity, high privileges, and no user interaction, with high confidentiality, integrity, and availability impacts to vulnerable and subsequent systems.

Likely exposure

Prioritize D-Link R95 devices running BE9500_1.00.16 where an attacker could reach DHMAPI and obtain the required high privileges. Network attackability does not establish internet exposure. A referenced submission title names 1.01B06, creating an unresolved version discrepancy; the bundle does not establish whether that version or other releases are affected.

Exploitation context

The supplied description reports a public exploit, and its references identify a GitHub exploit repository. The CVSS vector includes E:P, indicating proof-of-concept maturity. The bundle marks KEV as false and provides no evidence of active exploitation. Public exploit availability increases concern but does not demonstrate attacks against deployed devices.

Researcher notes

This assessment uses only the supplied bundle; linked pages and exploit contents were not independently reviewed. Exact authentication mechanics, deployment exposure, vendor confirmation, and remediation remain unspecified. The firmware discrepancy limits version certainty. CVSS subsequent-system impacts are reported scoring claims, not demonstrated attack outcomes in the supplied evidence.

Mitigation direction

  • Check D-Link guidance for confirmed affected versions, available firmware fixes, and supported workarounds; none is identified in the bundle.
  • As a precaution, restrict management access to trusted administrators and networks where operationally feasible; this is not a confirmed vendor workaround.
  • Review privileged administrator access and remove unnecessary permissions, given the stated high-privilege exploitation requirement.

Validation and detection

  • Inventory D-Link R95 devices and record exact firmware versions, prioritizing matches to BE9500_1.00.16.
  • Confirm DHMAPI reachability and administrative access restrictions through configuration review without attempting exploitation.
  • Resolve the BE9500_1.00.16 versus 1.01B06 discrepancy using vendor guidance before declaring a device unaffected.
  • If a vendor fix becomes available, verify installation and confirm its advisory explicitly addresses this CVE.
Prepared
Confidence
medium
Sources
4

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
cve · low confidence lookup

CVE-2026-93958 mapping review

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

Open ATT&CK lookup
Vulnerability profileCVE Program record
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

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
9.4CVSS 4.0CriticalCVSS: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——VulDB
9.1CVSS 3.1CriticalCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R2.36VulDB
9.1CVSS 3.0CriticalCVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R2.36VulDB
8.3CVSS 2.0HighAV:N/AC:L/Au:M/C:C/I:C/A:C/E:POC/RL:ND/RC:UR6.410VulDB

Vulnerability scoring details

Base CVSS 4.0 score

9.4Critical
CVSS 4.0 vector shape for CVE-2026-93958Attack VectorAttack ComplexityAttack RequirementsPrivileges RequiredUser InteractionVS ConfidentialityVS IntegrityVS AvailabilitySS ConfidentialitySS IntegritySS Availability

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

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-LinkR95BE9500_1.00.16Listed
Weakness

CWE details

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.

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.