CVE-2021-26471

Unauthenticated remote command execution in Vembu products

CRITICAL
9.8
CVSS Score
Published: June 8, 2021 at 06:36 PM UTC
Updated: June 17, 2026 at 03:43 AM UTC
2 products affected across 1 vendorBdr SuiteOffsite Dr

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Severity
CRITICAL9.8
Exploit prediction
EPSS 2%

Description

In VembuBDR before 4.2.0.1 and VembuOffsiteDR before 4.2.0.1, the http API located at /sgwebservice_o.php accepts a command argument. Using this command argument an unauthenticated attacker can execute arbitrary shell commands.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 4.2.0.1
Affected range stops below 4.2.0.1, so it looks safe — our inference, not a vendor statement
v < 4.2.0.1
Affected range stops below 4.2.0.1, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (4)

x_refsource_CONFIRMThird Party Advisory
https://csirt.divd.nl/2021/05/11/Vembu-zero-days/
x_refsource_CONFIRMThird Party Advisory
https://csirt.divd.nl/cases/DIVD-2020-00011/
x_refsource_CONFIRMThird Party Advisory
https://csirt.divd.nl/cves/CVE-2021-26471/
x_refsource_CONFIRMBroken LinkThird Party Advisory
https://www.wbsec.nl/vembu

CVSS

9.8CRITICALmitre
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
NVD-CWE-noinfo

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