CodeMeter Runtime Buffer Over-read (WIBU-210423-01)

critical Nessus Plugin ID 150962
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A buffer over-read vulnerability exists in a licensing server.


The remote CodeMeter runtime network server is affected by a buffer over-read vulnerability due to insufficient validation of user-supplied data. An unauthenticated, remote attacker can exploit this, via a specially crafted message, to disclose heap memory contents or crash the server.


Upgrade CodeMeter Runtime to version 7.21a or later.

See Also

Plugin Details

Severity: Critical

ID: 150962

File Name: codemeter_cve-2021-20093.nbin

Version: 1.5

Type: remote

Family: SCADA

Published: 6/23/2021

Updated: 12/20/2021

Dependencies: codemeter_network_server_detect.nbin

Risk Information

CVSS Score Source: CVE-2021-20093


Risk Factor: Medium

Score: 5.2


Risk Factor: Medium

Base Score: 6.4

Temporal Score: 5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:P

Temporal Vector: CVSS2#E:POC/RL:OF/RC:C


Risk Factor: Critical

Base Score: 9.1

Temporal Score: 8.2

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

CPE: cpe:2.3:a:wibu:codemeter_runtime:*:*:*:*:*:*:*:*

Required KB Items: Services/codemeter_network_server

Exploit Available: true

Exploit Ease: Exploits are available

Exploited by Nessus: true

Patch Publication Date: 6/10/2021

Vulnerability Publication Date: 6/10/2021

Reference Information

CVE: CVE-2021-20093