What’s Vulnerable › Vulnerabilities

CVE-2017-14422

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.3% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2017-09-13 · updated 2026-06-17
• Weakness: CWE-798

Description

D-Link DIR-850L REV. A (with firmware through FW114WWb07_h2ab_beta1) and REV. B (with firmware through FW208WWb02) devices use the same hardcoded /etc/stunnel.key private key across different customers' installations, which allows remote attackers to defeat the HTTPS cryptographic protection mechanisms by leveraging knowledge of this key from another installation.

Affected products

• D-Link DIR-850L and potentially others: before fw114wwb07_h2ab; through fw208wwb02; fw114wwb07_h2ab-beta1 — fixed in fw114wwb07_h2ab

How to fix

Upgrade to a fixed version: D-Link DIR-850L and potentially others fw114wwb07_h2ab. Check the vendor advisory for mitigations.

References

• https://pierrekim.github.io/blog/2017-09-08-dlink-850l-mydlink-cloud-0days-vulnerabilities.html
• https://pierrekim.github.io/blog/2017-09-08-dlink-850l-mydlink-cloud-0days-vulnerabilities.html

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