CVE-2021-20093

A buffer over-read vulnerability exists in Wibu-Systems CodeMeter versions < 7.21a. An unauthenticated remote attacker can exploit this issue to disclose heap memory contents or crash the CodeMeter Runtime Server.

Affected

Wibu-Systems CodeMeter

CVSS v3.1 NVD

9.1 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

CVSS v2.0 NVD

6.4 MEDIUMAV:N/AC:L/Au:N/C:P/I:N/A:P

EPSS

33.30% chance of exploitation in the next 30 days, 98th percentile

Published

2021-06-16

Updated

2024-08-03

Proof-of-concept exploits (1)

• https://www.tenable.com/security/research/tra-2021-24

Security advisories

• https://cdn.wibu.com/fileadmin/wibu_downloads/security_advisories/Advisory_WIBU-210423-01…
• https://cert-portal.siemens.com/productcert/pdf/ssa-675303.pdf
• https://us-cert.cisa.gov/ics/advisories/icsa-21-210-02

References

• CVE Record
• NVD entry