THREATPORT/VULNERABILITY/CVE-2021-20093
CRITICAL SEVERITY

CVE-2021-20093

Codemeter vulnerability

CVSS
9.1
EPSS
33.3%
EPSS pct
98th
Exploited
No known
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 vendor
Wibu
Affected product
Codemeter
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Weakness type (CWE)
Published
2021-06-16

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to high impact to confidentiality, high impact to availability.

Its EPSS score of 33.3% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it above 98% of all scored CVEs.

Check your external exposure to CVE-2021-20093

  • Confirm whether Wibu Codemeter is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2021-20093.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2021-20093

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2021-20093 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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