Critical severity · published Jan 21, 2022
CVE-2021-40855
The EU Technical Specifications for Digital COVID Certificates before 1.1 mishandle certificate governance
9.8
CVSS
0.7%
EPSS
No
On KEV
Description
The EU Technical Specifications for Digital COVID Certificates before 1.1 mishandle certificate governance. A non-production public key certificate could have been used in production.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.7% · higher than 51% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
TS
Technical Specifications For Digital Covid Certificates · Europa
before 1.1 · source: NVD
Affected product
TS
Technical Specifications For Digital Covid Certificates
Europa
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-40855
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-40855
Third Party Advisory
https://github.com/eu-digital-green-certificates/dgc-overview/security/advisories/GHSA-xcvc-p4fw-qmcj
Product
https://www.consilium.europa.eu/en/policies/coronavirus/eu-digital-covid-certificate/