5.9

CVE-2017-14420: dlink dir-850l_firmware Improper Certificate Validation

CVSS: 5.9v3.1MediumModified
Published 13-09-2017Last modified 05-08-2024
Open JSON

Vulnerability summary

CVE-2017-14420 is a medium (CVSS 5.9) Improper Certificate Validation vulnerability in dlink dir-850l_firmware. EPSS estimates a 0.51% chance of exploitation in the next 30 days, higher than 42% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
34/100
0100
Medium · default modelHow is this calculated?
CVSS score
5.9/10
010
Medium · v3.1 (NVD)
EPSS score
0.51%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference

Timeline

  1. 13-09-2017
    PublishedVulnerability first disclosed.
  2. 05-08-2024
    Last modifiedVulnerability information updated.

Description

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.

CVSS metrics

2 scores · 1 source · 2 versions

EPSS trend

Probability

0.51%

Chance of exploitation in the next 30 days

Percentile

42%

Versus all other CVEs

30-day change

0.00 pp

From 0.51% on 18-09-2026

18-09-202618-10-2026
EPSS score
0.51%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • referenceUnverified

    Exploit Reference (pierrekim.github.io)

    Maturity: unknown

Weaknesses

CWE · root cause

Affected systems

Dlink1 product

1 vendor · 1 product

References

1 links