CVE-2021-34598 json
Phoenix Contact: FL MGUARD lack of memory release in remote logging functionality
published 2021-11-10 4 y ago modified 2026-06-17 4 mo ago also EUVD-2021-21248
- cvss
- 7.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.9%
- EPSS 0.9% chance of exploitation in 30 days, percentile 60%
- public exploits
- 0
- none known
Summary
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
Exploit prediction
0.93% chance of exploitation in the next 30 days, higher than 60% 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:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| NVD | 2.0 | 4.3 | AV:N/AC:M/Au:N/C:N/I:N/A:P |
Affected products
- PHOENIX CONTACT FL MGUARD
Classification
- Weakness
-
- CWE-401 Missing Release of Memory after Effective Lifetime
References
-
cert.vde.com
/en/advisories/VDE-2021-046/
third-party-advisory
Sources
- CVE List CVE-2021-34598
- NVD CVE-2021-34598
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