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No exploitation reportedFix available

CVE-2018-17785

No exploitation reported by the sources we read.

  • Published2018-09-30
  • Fixed in0.39.7
  • WeaknessCWE-22

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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.

Timeline

dates in UTC
  1. 2018-09-3015:29CVE publishedNVD

Versions per branch

NVD · OSV
Blynk blynk-server
BranchAffectedFixed in
0.39< 0.39.70.39.7

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

  1. Update Blynk blynk-server to 0.39.7

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Published
2018-09-30
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-4r64-wf76-c53p

Frequently asked questions

What is CVE-2018-17785?

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.

Is CVE-2018-17785 actively exploited?

Active exploitation of CVE-2018-17785 has not been confirmed. Its EPSS score was 2.1% on 2026-11-08, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2018-17785?

CVE-2018-17785 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

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Sources for this record