Home/CVE/Missing Release of Resource after Effective Lifetime vulnerability in OpenSSL implementation of WAGO 750-831/xxx-xxx, 75
CVE

CVE-2021-34581

Missing Release of Resource after Effective Lifetime vulnerability in OpenSSL implementation of WAGO 750-831/xxx-xxx, 75

Missing Release of Resource after Effective Lifetime vulnerability in OpenSSL implementation of WAGO 750-831/xxx-xxx, 750-880/xxx-xxx, 750-881, 750-889 in versions FW4 up to FW15 allows an unauthenticated attacker to cause DoS on the device.

HIGH · CVSS 7.5 EPSS 0.01717
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-772Missing Release of Resource after Effective Lifetime
CWE-772Missing Release of Resource after Effective Lifetime
▤

Affected Products & Versions

9
wago 750-880\/040-000 firmware>= fw4 and <= fw15
wago 750-880\/025-002 firmware>= fw4 and <= fw15
wago 750-880\/025-001 firmware>= fw4 and <= fw15
wago 750-880\/025-000 firmware>= fw4 and <= fw15
wago 750-831\/000-002 firmware>= fw4 and <= fw15
wago 750-889 firmware>= fw4 and <= fw15
wago 750-881 firmware>= fw4 and <= fw15
wago 750-831 firmware>= fw4 and <= fw15
▣

Scoring & Timeline

7.5
HIGH · CVSS v3.1 · info@cert.vde.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD31 Aug 2021 · 11:15 AM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
🔗

References & Sources

1
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://cert.vde.com/en-us/advisories/vde-2021-038Third Party Advisory
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