What’s Vulnerable › Vulnerabilities

CVE-2018-17785

• Severity: high (CVSS 7.5 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.1% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2018-09-30 · updated 2026-06-17
• Weakness: CWE-22

Description

In blynk-server in Blynk before 0.39.7, Directory Traversal exists via a ../ in a URI that has /static or /static/js at the beginning, as demonstrated by reading the /etc/passwd file.

Affected products

• Blynk-Server: before 0.39.7 — fixed in 0.39.7

How to fix

Upgrade to a fixed version: Blynk-Server 0.39.7. Check the vendor advisory for mitigations.

References

• https://github.com/blynkkk/blynk-server/issues/1256
• https://github.com/blynkkk/blynk-server/releases/tag/v0.39.7
• https://github.com/blynkkk/blynk-server/issues/1256
• https://github.com/blynkkk/blynk-server/releases/tag/v0.39.7

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