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Fencer Vulns
high 7.5

CVE-2017-7920 json

An Improper Authentication issue was discovered in ABB VSN300 WiFi Logger Card versions 1.8.15 and prior, and VSN300 WiFi Logger Card for R…

published 2017-08-07 9 y ago modified 2026-06-17 4 mo ago also EUVD-2017-16891

cvss
7.5
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.7%
EPSS 2.7% chance of exploitation in 30 days, percentile 86%
public exploits
0
none known

Summary

An Improper Authentication issue was discovered in ABB VSN300 WiFi Logger Card versions 1.8.15 and prior, and VSN300 WiFi Logger Card for React versions 2.1.3 and prior. By accessing a specific uniform resource locator (URL) on the web server, a malicious user is able to access internal information about status and connected devices without authenticating.

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-17-192-03 updated cvss 7.5

ABB VSN300 WiFi Logger Card

  • ABB VSN300 WiFi Logger Card <= 1.8.15 ABB VSN300 WiFi Logger Card for React <= 2.1.3
    affected: mitigation “Users can find more information from ABB's security advisory”

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

Exploit prediction

2.71% chance of exploitation in the next 30 days, higher than 86% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.0 7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:P/I:N/A:N

Affected products

  • n/a ABB VSN300 WiFi Logger Card

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.