What’s Vulnerable › Vulnerabilities
CVE-2021-34598: Phoenix Contact: FL MGUARD lack of memory release in remote logging functionality
- Severity: medium (CVSS 4.3 v2.0)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.9% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2021-11-10 · updated 2026-06-17
- Weakness: CWE-401
Description
In Phoenix Contact FL MGUARD 1102 and 1105 in Versions 1.4.0, 1.4.1 and 1.5.0 the remote logging functionality is impaired by the lack of memory release for data structures from syslog-ng when remote logging is active
Affected products
- Phoenixcontact Fl Mguard 1102 Firmware: 1.4.0, 1.4.1, 1.5.0
- Phoenixcontact Fl Mguard 1105 Firmware: 1.4.0, 1.4.1, 1.5.0
References
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