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Fencer Vulns
medium 5.3

CVE-2019-7272 json

Optergy Proton/Enterprise devices allow Username Disclosure.

published 2019-07-01 7 y ago modified 2026-06-17 4 mo ago also EUVD-2019-16816

cvss
5.3
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
10.5%
EPSS 10.5% chance of exploitation in 30 days, percentile 95%
public exploits
1
Exploit-DB

Summary

Optergy Proton/Enterprise devices allow Username Disclosure.

Vendor advisories

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

cisa ICSA-19-157-01 updated cvss 5.3

Optergy Proton Enterprise Building Management System

  • Optergy Proton/Enterprise <= 2.3.0a
    affected: mitigation “Update Optergy server to Version 2.4.5 (or later) to remediate the issues described in this advisory (Proton and Optergy Enterprise).”

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

Timeline

  1. Published
  2. First public exploit (EDB-47640)

Exploit prediction

10.47% chance of exploitation in the next 30 days, higher than 95% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-47640 Optergy 2.3.0a - Username Disclosure webapps, 2019-11-12
  • packetstormsecurity.com http://packetstormsecurity.com/files/155259/Optergy-BMS-2.0.3a-Account-Reset-Username-Disclosure.html referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:P/I:N/A:N

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.