Hard-coded credentials in D-Link E15, M32, R15 and R32 MQTT Broker
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- Low · Low · Low
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-259.
Summary
D-Link E15, M32, R15 and R32 devices contain hard-coded credentials in the MQTT Broker component that processes the /etc/emDaemon/passwd file. The flaw is classified as CWE-798. A remote attacker with low privileges can exploit it without user interaction, and a public exploit is linked in the references.
Written with Claude Haiku 5.5 from the sources below · 2026-10-28
Description from the CNA
A vulnerability was detected in D-Link E15, M32, R15 and R32. This issue affects some unknown processing of the file /etc/emDaemon/passwd of the component MQTT Broker. The manipulation results in hard-coded credentials. It is possible to launch the attack remotely. The exploit is now public and may be used.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| D-Link | E15 | all versions | — | No fix listed | CNA |
| D-Link | M32 | all versions | — | No fix listed | CNA |
| D-Link | R15 | all versions | — | No fix listed | CNA |
| D-Link | R32 | all versions | — | No fix listed | CNA |
Remediation
The sources list no fixed version for D-Link E15, D-Link M32, D-Link R15 and D-Link R32.
Written with Claude Haiku 5.5 from the sources below · 2026-10-28
Timeline
- 2026-10-19 Threatist record created from CVE-2026-112146
- 2026-10-19 Alias added: GHSA-wwwx-2xcj-h3pf
- 2026-10-20 CISA SSVC decision points changed
- 2026-10-20 Priority changed: LOW → MEDIUM
References
More D-Link vulnerabilities
- TI-2024-03070 D-Link DNS-320L/DNS-325/DNS-327L/DNS-340L HTTP GET Request nas_sharing.cgi command injection KEVCVSS 3.1CRITICAL 9.8
- TI-2024-03069 D-Link DNS-320L/DNS-325/DNS-327L/DNS-340L HTTP GET Request nas_sharing.cgi hard-coded credentials KEVCVSS 3.1CRITICAL 9.8
- TI-2024-00708 D-Link DIR-859 HTTP POST Request hedwig.cgi path traversal KEVCVSS 3.1CRITICAL 9.8
- TI-2023-10693 OS Command injection vulnerability in D-Link DIR820LA1_FW105B03 allows attackers to… KEVCVSS 3.1CRITICAL 9.8
- TI-2022-17249 D-Link Go-RT-AC750 GORTAC750_revA_v101b03 and GO-RT-AC750_revB_FWv200b02 are vulnerable… KEVCVSS 3.1CRITICAL 9.8
- TI-2022-09657 D-Link DIR-820L 1.05B03 was discovered to contain remote command execution (RCE)… KEVCVSS 3.1CRITICAL 9.8
Sources
- CVE-2026-112146 · CVE Program
- CVE-2026-112146 · NVD
- FIRST EPSS
- GHSA-wwwx-2xcj-h3pf · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences