Root-password disclosure via unredacted log entries
Published May 7, 2026 · Updated May 7, 2026
Sensitive-information exposure in Phoenix Contact mGuard devices allows remote authenticated users to obtain the root password through web management. The administrative interface stores password material in log entries without removing sensitive values, making foreign and root credentials readable to log-authorized accounts. Exploitation requires an authenticated low-privileged account with log-read access and user interaction; affected firmware is before 8.9.3 or 10.4.1, depending on the model.
Summary
What happened
Sensitive-information exposure in Phoenix Contact mGuard devices allows remote authenticated users to obtain the root password through web management. The administrative interface stores password material in log entries without removing sensitive values, making foreign and root credentials readable to log-authorized accounts. Exploitation requires an authenticated low-privileged account with log-read access and user interaction; affected firmware is before 8.9.3 or 10.4.1, depending on the model.
The record
- CVE
- CVE-2024-43384
- Published
- May 7, 2026
- Updated
- May 7, 2026
- Vendor
- Phoenix Contact
- Product
- FL MGUARD RS2000 TX/TX-B
- Classifications
- CWE-212, T1552.001
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- May 7, 2026CVE publishedPublication date reported by the CVE source.
- May 7, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=0 <8.9.3
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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