CVE-2021-26606
DreamSecurity MagicLine Buffer Overflow Vulnerability
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
DreamSecurity MagicLine Buffer Overflow Vulnerability
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.
- Record
CVE-2021-26606- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-20, CWE-120
- Updated
- 2026-11-02
EUVDEUVD-2021-13400
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.
- Record
EUVD-2021-13400- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-56j5-fr4h-4c8q No score
A vulnerability in PKI Security Solution of Dream Security could allow arbitrary command...
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.
- Record
GHSA-56j5-fr4h-4c8q- Weakness
- CWE-20
- Updated
- 2026-11-02
NVD
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.
- Record
CVE-2021-26606- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 10.0 High
AV:N/AC:L/Au:N/C:C/I:C/A:C - Weakness
- CWE-20, CWE-120
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases, published | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-26606 is a critical vulnerability (CVSS 9.8) in Dream Security Co.,ltd Magicline4nx.exe, published August 6, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.43%, the 84th percentile. No source names a fixed version.