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CVE-2025-43876— iSTAR Ultra, Ultra SE, Ultra G2, Ultra G2 SE, iSTAR Edge G2 - Authenticated web application command injection - get8021xSettings

Quick assessment

Affected
Johnson Controls iSTAR Ultra, iSTAR Ultra SE
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Johnson Controls iSTAR Ultra等都是美国江森自控（Johnson Controls）公司的产品。Johnson Controls iSTAR Ultra是一款门禁控制器。Johnson Controls iSTAR Ultra SE是一款门禁控制器软件。Johnson Controls iSTAR Ultra G2是一款门禁控制器软件。 Johnson Controls多款产品存在安全漏洞，该漏洞源于成功利用可能导致访问设备。以下产品受到影响：iSTAR Ultra、iSTAR

AI Predicted 5.9 Difficulty: Moderate EPSS 0.29% · P19

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2025-43876

Vulnerability Information
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Vulnerability Title
iSTAR Ultra, Ultra SE, Ultra G2, Ultra G2 SE, iSTAR Edge G2 - Authenticated web application command injection - get8021xSettings
Source: CVE Program / CVE List V5
Vulnerability Description
Under certain circumstances a successful exploitation could result in access to the device.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
OS命令中使用的特殊元素转义处理不恰当(OS命令注入)
Source: CVE Program / CVE List V5
Vulnerability Title
Johnson Controls多款产品 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Johnson Controls iSTAR Ultra等都是美国江森自控（Johnson Controls）公司的产品。Johnson Controls iSTAR Ultra是一款门禁控制器。Johnson Controls iSTAR Ultra SE是一款门禁控制器软件。Johnson Controls iSTAR Ultra G2是一款门禁控制器软件。 Johnson Controls多款产品存在安全漏洞，该漏洞源于成功利用可能导致访问设备。以下产品受到影响：iSTAR Ultra、iSTAR
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Johnson Controls iSTAR Ultra, iSTAR Ultra SE 0 ~ 6.9.7 -
Johnson Controls iSTAR Ultra G2, iSTAR Ultra G2 SE, iSTAR Edge G2 0 ~ 6.9.2 -

II. Public POCs for CVE-2025-43876

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2025-43876

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Vendor Advisories for CVE-2025-43876 (1)

Vendor Pages for CVE-2025-43876 (1)

IV. Related Vulnerabilities

Same product: iSTAR Ultra, iSTAR Ultra SE
Same vendor: Johnson Controls
Same weakness: CWE-78

V. Comments for CVE-2025-43876

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