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Fencer Vulns
high 7.5

CVE-2023-3127 json

Improper Authentication in iSTAR

published 2023-07-11 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-43813

cvss
7.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.6%
EPSS 0.6% chance of exploitation in 30 days, percentile 46%
public exploits
0
none known

Summary

An unauthenticated user could log into iSTAR Ultra, iSTAR Ultra LT, iSTAR Ultra G2, and iSTAR Edge G2 with administrator rights.

Patch / fix

  • Sensormatic Electronics, a subsidiary of Johnson Controls, Inc. iSTAR Ultra 6.9.2 CU01
  • Sensormatic Electronics, a subsidiary of Johnson Controls, Inc. iSTAR Ultra LT 6.9.2 CU01
  • Sensormatic Electronics, a subsidiary of Johnson Controls, Inc. iSTAR Ultra G2 6.9.2 CU01
  • Sensormatic Electronics, a subsidiary of Johnson Controls, Inc. iSTAR Edge G2 6.9.2 CU01

Vendor advisories

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

cisa ICSA-23-192-02 updated cvss 7.5

Sensormatic Electronics iSTAR

  • Sensormatic Electronics, LLC, a subsidiary of Johnson Controls Inc. iSTAR Edge G2 < 6.9.2 CU01 Sensormatic Electronics, LLC, a subsidiary of Johnson Controls Inc. iSTAR Ultra > 6.8.6, < 6.9.2 CU01 Sensormatic Electronics, LLC, a subsidiary of Johnson Controls Inc. iSTAR Ultra G2 < 6.9.2 CU01 Sensormatic Electronics, LLC, a subsidiary of Johnson Controls Inc. iSTAR Ultra LT > 6.8.6, < 6.9.2 CU01
    affected: vendor fix, mitigation “For more detailed mitigation instructions, please see Johnson Controls Product Security Advisory JCI-PSA-2023-05.” johnsoncontrols.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

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
2 y ago

Exploit prediction

0.56% chance of exploitation in the next 30 days, higher than 46% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

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

Affected products

  • Sensormatic Electronics, a subsidiary of Johnson Controls, Inc. iSTAR Ultra
  • Sensormatic Electronics, a subsidiary of Johnson Controls, Inc. iSTAR Ultra LT
  • Sensormatic Electronics, a subsidiary of Johnson Controls, Inc. iSTAR Ultra G2
  • Sensormatic Electronics, a subsidiary of Johnson Controls, Inc. iSTAR Edge G2

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.