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Fencer Vulns
critical 9.8

CVE-2020-6974 json

Honeywell Notifier Web Server (NWS) Version 3.50 is vulnerable to a path traversal attack, which allows an attacker to bypass access to res…

published 2020-04-07 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-28114

cvss
9.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.9%
EPSS 1.9% chance of exploitation in 30 days, percentile 79%
public exploits
0
none known

Summary

Honeywell Notifier Web Server (NWS) Version 3.50 is vulnerable to a path traversal attack, which allows an attacker to bypass access to restricted directories. Honeywell has released a firmware update to address the problem.

Vendor advisories

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

cisa ICSA-20-051-03 updated cvss 9.4

Honeywell NOTI-FIRE-NET Web Server (NWS-3)

  • Honeywell NOTI-FIRE-NET Web Server (NWS-3) <= 3.50
    affected: mitigation “Honeywell has released a firmware update package (login required) for all affected products listed above.” securityandfire.honeywell.com

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

1.90% chance of exploitation in the next 30 days, higher than 79% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P

Affected products

  • n/a Honeywell Notifier Web Server (NWS)

Classification

Weakness
  • CWE-22 Improper Limitation of a Pathname to a Restricted Directory

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.