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Hard-coded credentials in D-Link E15, M32, R15 and R32 MQTT Broker

Priority MEDIUM 57CWE-259Published · Updated

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

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00443 38th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix No fix listed No fixed version in the sources yet

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

VendorProductAffected versionsFixed inStatusSource
D-LinkE15all versions—No fix listedCNA
D-LinkM32all versions—No fix listedCNA
D-LinkR15all versions—No fix listedCNA
D-LinkR32all versions—No fix listedCNA
  • E15 VendorD-Link Affected all versions Fixed in — No fix listed CNA
  • M32 VendorD-Link Affected all versions Fixed in — No fix listed CNA
  • R15 VendorD-Link Affected all versions Fixed in — No fix listed CNA
  • R32 VendorD-Link Affected all versions Fixed in — No fix listed CNA

CPE names CNA · 4

CPEVersionsRoleVendor
cpe:2.3:h:d-link:e15:*:*:*:*:*:*:*:*——D-Link
cpe:2.3:h:d-link:m32:*:*:*:*:*:*:*:*——D-Link
cpe:2.3:h:d-link:r15:*:*:*:*:*:*:*:*——D-Link
cpe:2.3:h:d-link:r32:*:*:*:*:*:*:*:*——D-Link
  • cpe:2.3:h:d-link:e15:*:*:*:*:*:*:*:* Versions — — ·D-Link
  • cpe:2.3:h:d-link:m32:*:*:*:*:*:*:*:* Versions — — ·D-Link
  • cpe:2.3:h:d-link:r15:*:*:*:*:*:*:*:* Versions — — ·D-Link
  • cpe:2.3:h:d-link:r32:*:*:*:*:*:*:*:* Versions — — ·D-Link

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

  1. 2026-10-19 Threatist record created from CVE-2026-112146
  2. 2026-10-19 Alias added: GHSA-wwwx-2xcj-h3pf
  3. 2026-10-20 CISA SSVC decision points changed
  4. 2026-10-20 Priority changed: LOW → MEDIUM

References

  • 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
See all 979 →

Sources