High severity · published Aug 31, 2021
CVE-2021-34581
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…
7.5
CVSS
1%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.0% · higher than 63% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
7F
750-831 Firmware · Wago
fw4 through fw15 · source: NVD
7F
750-831/000-002 Firmware · Wago
fw4 through fw15 · source: NVD
7F
750-880 Firmware · Wago
fw4 through fw15 · source: NVD
7F
750-880/025-000 Firmware · Wago
fw4 through fw15 · source: NVD
7F
750-880/025-001 Firmware · Wago
fw4 through fw15 · source: NVD
7F
750-880/025-002 Firmware · Wago
fw4 through fw15 · source: NVD
7F
750-880/040-000 Firmware · Wago
fw4 through fw15 · source: NVD
7F
750-881 Firmware · Wago
fw4 through fw15 · source: NVD
7F
750-889 Firmware · Wago
fw4 through fw15 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-34581
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-34581
Third Party Advisory
https://cert.vde.com/en-us/advisories/vde-2021-038
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