Medium severity · published Oct 1, 2026
CVE-2026-27873
- Use of Hard-coded Credentials vulnerability in Johnson Controls EasyIO FG allows - Pasword Spraying
5.6
CVSS
0.1%
EPSS
No
On KEV
Description
- Use of Hard-coded Credentials vulnerability in Johnson Controls EasyIO FG allows - Pasword Spraying. This issue affects EasyIO FG: before 2.0b52.
Exploitation
Is it being used?
Exploit prediction (EPSS)0.1% · higher than 0% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
EF
EasyIO FG · Johnson Controls
before 2.0b52 · source: vendor
In the news
ThreatIntelHigh
Johnson Controls EasyIO FG
View CSAF Summary Successful exploitation of these vulnerabilities could allow an attacker to gain full unauthorized access to the device. The following versions of Johnson Controls EasyIO FG are affected: EasyIO FG firmware <=2.0b52 (CVE-2026-27872, CVE-2026-27873) CVSS Vendor Equipment v3 7.7 Johnson Controls EasyIO FG firmware 2 Vulnerabilities Use of Hard-coded Credentials, Improper Privilege Management Background Critical Infrastructure Sectors: Critical Manufacturing, Commercial Facilities, Government Services and Facilities, Transportation Systems, Energy Countries/Areas Deployed: Worldwide Company Headquarters Location: Ireland Vulnerabilities Expand All + CVE-2026-27872 A vulnerability exists in EasyIO FG relating to an attacker gaining unauthorized access to the system through hard-coded credentials and improper privilege management, potentially resulting in full device compromise. Successful exploitation could result in technical or operational impact. Read More 1 Affected Product Johnson Controls EasyIO FG firmware: <=2.0b52 Product Status: known_affected Remediations Mitigation Johnson Controls has determined that the EasyIO FG Series has reached End-of-Life (EOL) and End-of-Support (EOS) status. The product has not been manufactured or sold since prior to 2019, and the source code is no longer available. As a result, no firm...
Oct 6, 2026·CISA Advisories