Detections
Analytics

CVE-2021-26471

critical

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.

References

https://csirt.divd.nl/cves/CVE-2021-26471/

https://csirt.divd.nl/cases/DIVD-2020-00011/

https://csirt.divd.nl/2021/05/11/Vembu-zero-days/

https://www.wbsec.nl/vembu

Details

Source: Mitre, NVD

Published: 2021-06-08

Updated: 2026-06-17

Risk Information

CVSS v2

Base Score: 7.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

Severity: High

CVSS v3

Base Score: 9.8

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity: Critical

EPSS

EPSS: 0.05686