CVE-2021-26606
CVSS v3
9.8
CRITICAL
EPSS Score
2.4 %
exploit probability, as of 2026-09-25
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
A vulnerability in PKI Security Solution of Dream Security could allow arbitrary command execution. This vulnerability is due to insufficient validation of the authorization certificate. An attacker could exploit this vulnerability by sending a crafted HTTP request an affected program. A successful exploit could allow the attacker to remotely execute arbitrary code on a target system.
Technical details
- Published
- 2021-08-06
Frequently asked questions
What is CVE-2021-26606?
A vulnerability in PKI Security Solution of Dream Security could allow arbitrary command execution. This vulnerability is due to insufficient validation of the authorization certificate. An attacker could exploit this vulnerability by sending a crafted HTTP request an affected program. A successful exploit could allow the attacker to remotely execute arbitrary code on a target system.
Is CVE-2021-26606 actively exploited?
Active exploitation of CVE-2021-26606 has not been confirmed. Its EPSS score was 2.4% on 2026-09-25, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2021-26606?
CVE-2021-26606 has a CVSS v3 base score of 9.8 (CRITICAL severity).
Is CVE-2021-26606 affecting your environment?
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