Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain
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AccessIdentify reachable DGS-1100-08PD web interface
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DeliveryCraft HTTP request targeting /etc/boa.conf processing path
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ExploitSatisfy high-complexity exploit preconditions
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ExecutionTrigger least privilege violation in Boa handler
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ImpactAchieve low-integrity write or partial config disclosure on vulnerable component
Vulnerability Assessment
| Weakness |
CWE
ASVS 5.0
V8 - Authorization Least privilege on resource access
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| Exploitation Conditions | CVSS PR:N confirms no authentication is required to attempt exploitation. CVSS AC:H confirms high attack complexity - exploitation is not straightforward and requires meeting specific, non-default conditions in how the web interface processes /etc/boa.conf; exact preconditions (e.g., specific request structure, timing, or parameter state) are described in the publicly available POC but are not detailed in NVD or vendor advisory data. The attack targets the web management interface, so the web interface must be reachable from the attacker's network position - if access to the management interface is restricted to a dedicated management VLAN, remote exploitation is blocked. No user interaction is required (UI:N) and no subsequent system impact is present (SC:N/SI:N/SA:N), limiting blast radius strictly to the vulnerable switch's web component. Exploitation does not appear to require any specific non-default configuration beyond having the default web interface enabled, which is typical for this device class. |
| Impact | The overall risk is low, corroborated by the CVSS 4.0 base score of 2.9. The attack vector is network (AV:N), meaning no physical access is required, but attack complexity is rated high (AC:H), indicating that exploitation depends on specific conditions, configurations, or exploit knowledge that are not trivially met. Privileges required are none (PR:N) and no user interaction is needed (UI:N), which are factors that would normally elevate concern, but these are offset by AC:H and the minimal impact scope: only low integrity impact on the vulnerable component (VI:L) with no confidentiality or availability impact confirmed by CVSS. The exploit maturity modifier E:P confirms a proof-of-concept exists, which removes the research barrier but does not equate to weaponized or in-the-wild exploitation. No EPSS score was provided in source data, preventing probabilistic exploitation likelihood comparison. This is not listed in the CISA KEV catalog, confirming no confirmed active exploitation at time of analysis. The 'Information Disclosure' tag in VulDB metadata conflicts slightly with the CVSS showing only integrity impact (VI:L, VC:N) - this discrepancy should be verified with the vendor, as the actual impact may include partial configuration or path disclosure through the boa.conf processing pathway. |
| Exploit ScenarioDerived | A remote attacker with knowledge of the specific exploitation technique - or armed with the publicly available proof-of-concept linked on Notion (https://www.notion.so/D-link-DGS-1100-08PD-v1-00-006-3670ed14e5cb80848bc4e3129dfafa29) - sends crafted HTTP requests to the DGS-1100-08PD web interface targeting the /etc/boa.conf processing path. By satisfying the high-complexity preconditions (e.g., specific request sequencing, race condition, or parameter manipulation), the attacker triggers a least privilege violation that allows low-level modification or partial disclosure of configuration state beyond what the web interface should permit. The impact is constrained to low integrity impact on the switch's web component, making this more relevant to configuration tampering than full device compromise. |
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Alert meAnalysisAIv1 – Jun 08, 2026
Least privilege violation in the D-Link DGS-1100-08PD managed switch firmware version 1.00.006 allows remote unauthenticated attackers to achieve low-integrity impact through improper processing of the Boa web server configuration file /etc/boa.conf via the device's web interface. The CVSS 4.0 score is 2.9 (Low), reflecting high attack complexity (AC:H) and constrained impact (VI:L only), though a publicly available proof-of-concept lowers the barrier for skilled attackers. No active exploitation has been confirmed in CISA KEV, making this a low-priority but trackable risk for network operators deploying this switch model.
RemediationAI
No vendor-released patch or specific fixed firmware version was identified at time of analysis. Operators should monitor D-Link's official product page at https://www.dlink.com/ and the VulDB entry at https://vuldb.com/vuln/369165 for firmware updates targeting CVE-2026-11555. As an immediate compensating control, restrict access to the DGS-1100-08PD web management interface to trusted management VLANs or administrative hosts only, using ACLs or firewall rules to block TCP port 80/443 from untrusted network segments - this directly addresses the AV:N attack vector by eliminating remote reachability. Disabling remote web management entirely where CLI or SNMP management is sufficient eliminates the attack surface for this vulnerability without significant operational impact in most environments. These mitigations are effective because AC:H exploitation already requires specific conditions; removing remote web interface access raises that bar substantially. No side effects from access restriction are expected beyond loss of GUI-based management from non-administrative hosts.
Affected VersionsENISA
Affected Packages
Source: OSV (Open Source Vulnerabilities)
Affects your stack
Affects 1 package in euvd
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Technical ContextAI · show details
The D-Link DGS-1100-08PD is a managed 8-port PoE Gigabit Ethernet switch running an embedded web interface powered by the Boa HTTP server, a lightweight single-threaded web server commonly deployed in resource-constrained embedded and IoT devices. The vulnerability resides in the processing of /etc/boa.conf, the Boa server's primary configuration file, which governs web interface behavior, CGI execution paths, and access controls. CWE-272 (Least Privilege Violation) identifies the root cause: a process or component operates with more privileges than its function requires, enabling manipulation beyond the intended access scope. In this context, the web interface component's handling of boa.conf may expose configuration manipulation or information to callers that should not have that level of access. The CPE string cpe:2.3:a:d-link:dgs-1100-08pd:*:*:*:*:*:*:*:* uses a wildcard version field, meaning NVD has not bounded the affected range beyond the reported 1.00.006 firmware.
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Severity by source
CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P
Primary rating from Vendor (VulDB) · only source for this CVE.
CVSS VectorVendor: VulDB
Lifecycle Timeline
1DescriptionCVE.org
A vulnerability was identified in D-Link DGS-1100-08PD 1.00.006. This issue affects some unknown processing of the file /etc/boa.conf of the component Web Interface. Such manipulation leads to least privilege violation. The attack may be launched remotely. The attack requires a high level of complexity. The exploitability is assessed as difficult. The exploit is publicly available and might be used.
Threat Intelligence Overview
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.
EUVD-2026-35178
GHSA-gr54-fjx7-fj9c
NVD
CVE.org
EPSS
Vulnrichment
VulDB
Exploit-DB