The D-Link NPAPI extension, as used on D-Link DIR-850L REV.
Priority LOW 27CWE-295Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- Impact type
- Spoofing
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-295.
Summary
The D-Link NPAPI extension, as used on D-Link DIR-850L REV. A (with firmware through FW114WWb07_h2ab_beta1) and REV. B (with firmware through FW208WWb02) devices, does not verify X.509 certificates from SSL servers, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate.
Why it matters now
EPSS 0.00508 43rd 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 · 3
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:dlink:dir-850l_firmware:*:*:*:*:*:*:*:* | up to fw114wwb07_h2ab_beta1 | Vulnerable | D-Link Japan K.K. |
| cpe:2.3:h:dlink:dir-850l:-:*:*:*:*:*:*:* | not specified by NVD | Running on | D-Link Japan K.K. |
| cpe:2.3:o:dlink:dir-850l_firmware:*:*:*:*:*:*:*:* | up to fw208wwb02 | Vulnerable | D-Link Japan K.K. |
- cpe:2.3:o:dlink:dir-850l_firmware:*:*:*:*:*:*:*:* Versions up to fw114wwb07_h2ab_beta1 Vulnerable ·D-Link Japan K.K.
- cpe:2.3:h:dlink:dir-850l:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·D-Link Japan K.K.
- cpe:2.3:o:dlink:dir-850l_firmware:*:*:*:*:*:*:*:* Versions up to fw208wwb02 Vulnerable ·D-Link Japan K.K.
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2017-14420
- 2026-10-03 Alias added: GHSA-6rcq-57qm-23q2
References
More D-Link Japan K.K. Dir-850l Firmware vulnerabilities
- TI-2017-10536 The DHCP client on D-Link DIR-850L REV. CVSS 3.1CRITICAL 9.8
- TI-2016-05627 D-Link DIR routers contain a stack-based buffer overflow in the HNAP Login action CVSS 3.0CRITICAL 9.8
- TI-2018-06551 An authentication bypass vulnerability on D-Link DIR-850L Wireless AC1200 Dual Band… CVSS 3.1CRITICAL 9.8
- TI-2021-21203 DLink DIR850 ET850-1.08TRb03 is affected by an incorrect access control vulnerability… CVSS 3.1HIGH 7.5
- TI-2017-02398 Stack-based buffer overflow in D-Link DIR-850L and potentially others CVSS 3.1HIGH 8.8
- TI-2023-26714 An issue in D-Link DIR-850L v.B1_FW223WWb01 allows a remote attacker to execute arbitrary… CVSS 3.1CRITICAL 9.8
Sources
- CVE-2017-14420 · CVE Program
- CVE-2017-14420 · NVD
- FIRST EPSS
- GHSA-6rcq-57qm-23q2 · 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