Certain D-Link devices have a hardcoded Alphanetworks user account with TELNET access…
Priority MEDIUM 45CWE-319Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-319.
Summary
Certain D-Link devices have a hardcoded Alphanetworks user account with TELNET access because of /etc/config/image_sign or /etc/alpha_config/image_sign. This affects DIR-600 B1 V2.01 for WW, DIR-890L A1 v1.03, DIR-615 J1 v100 (for DCN), DIR-645 A1 v1.03, DIR-815 A1 v1.01, DIR-823 A1 v1.01, and DIR-842 C1 v3.00.
Why it matters now
EPSS 0.01611 76th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 14
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:dlink:dir-600_b1_firmware:2.01:*:*:*:*:*:*:* | 2.01 | Vulnerable | D-Link Japan K.K. |
| cpe:2.3:h:dlink:dir-600_b1:-:*:*:*:*:*:*:* | not specified by NVD | Running on | D-Link Japan K.K. |
| cpe:2.3:o:dlink:dir-615_j1_firmware:100:*:*:*:*:*:*:* | 100 | Vulnerable | D-Link Japan K.K. |
| cpe:2.3:h:dlink:dir-615_j1:-:*:*:*:*:*:*:* | not specified by NVD | Running on | D-Link Japan K.K. |
| cpe:2.3:o:dlink:dir-645_a1_firmware:1.03:*:*:*:*:*:*:* | 1.03 | Vulnerable | D-Link Japan K.K. |
| cpe:2.3:h:dlink:dir-645_a1:-:*:*:*:*:*:*:* | not specified by NVD | Running on | D-Link Japan K.K. |
| cpe:2.3:o:dlink:dir-815_a1_firmware:1.01:*:*:*:*:*:*:* | 1.01 | Vulnerable | D-Link Japan K.K. |
| cpe:2.3:h:dlink:dir-815_a1:-:*:*:*:*:*:*:* | not specified by NVD | Running on | D-Link Japan K.K. |
| cpe:2.3:o:dlink:dir-823_a1_firmware:1.01:*:*:*:*:*:*:* | 1.01 | Vulnerable | D-Link Japan K.K. |
| cpe:2.3:h:dlink:dir-823_a1:-:*:*:*:*:*:*:* | not specified by NVD | Running on | D-Link Japan K.K. |
- cpe:2.3:o:dlink:dir-600_b1_firmware:2.01:*:*:*:*:*:*:* Versions 2.01 Vulnerable ·D-Link Japan K.K.
- cpe:2.3:h:dlink:dir-600_b1:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·D-Link Japan K.K.
- cpe:2.3:o:dlink:dir-615_j1_firmware:100:*:*:*:*:*:*:* Versions 100 Vulnerable ·D-Link Japan K.K.
- cpe:2.3:h:dlink:dir-615_j1:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·D-Link Japan K.K.
- cpe:2.3:o:dlink:dir-645_a1_firmware:1.03:*:*:*:*:*:*:* Versions 1.03 Vulnerable ·D-Link Japan K.K.
- cpe:2.3:h:dlink:dir-645_a1:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·D-Link Japan K.K.
- cpe:2.3:o:dlink:dir-815_a1_firmware:1.01:*:*:*:*:*:*:* Versions 1.01 Vulnerable ·D-Link Japan K.K.
- cpe:2.3:h:dlink:dir-815_a1:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·D-Link Japan K.K.
- cpe:2.3:o:dlink:dir-823_a1_firmware:1.01:*:*:*:*:*:*:* Versions 1.01 Vulnerable ·D-Link Japan K.K.
- cpe:2.3:h:dlink:dir-823_a1:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·D-Link Japan K.K.
Show 4 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:dlink:dir-842_c1_firmware:3.00:*:*:*:*:*:*:* | 3.00 | Vulnerable | D-Link Japan K.K. |
| cpe:2.3:h:dlink:dir-842_c1:-:*:*:*:*:*:*:* | not specified by NVD | Running on | D-Link Japan K.K. |
| cpe:2.3:o:dlink:dir-890l_a1_firmware:1.03:*:*:*:*:*:*:* | 1.03 | Vulnerable | D-Link Japan K.K. |
| cpe:2.3:h:dlink:dir-890l_a1:-:*:*:*:*:*:*:* | not specified by NVD | Running on | D-Link Japan K.K. |
- cpe:2.3:o:dlink:dir-842_c1_firmware:3.00:*:*:*:*:*:*:* Versions 3.00 Vulnerable ·D-Link Japan K.K.
- cpe:2.3:h:dlink:dir-842_c1:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·D-Link Japan K.K.
- cpe:2.3:o:dlink:dir-890l_a1_firmware:1.03:*:*:*:*:*:*:* Versions 1.03 Vulnerable ·D-Link Japan K.K.
- cpe:2.3:h:dlink:dir-890l_a1:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·D-Link Japan K.K.
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2019-18852
- 2026-10-03 Alias added: GHSA-mpx6-w79q-h86g
References
More D-Link Japan K.K. Dir-600 B1 Firmware vulnerabilities
- TI-2017-09588 D-Link DIR-600 Rev Bx devices with v2.x firmware allow remote attackers to read passwords… CVSS 3.1CRITICAL 9.8
Sources
- CVE-2019-18852 · CVE Program
- CVE-2019-18852 · NVD
- FIRST EPSS
- GHSA-mpx6-w79q-h86g · 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