Critical severity9.8NVD Advisory· Published Jun 8, 2021· Updated Jun 17, 2026

CVE-2021-26471

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Vembu/VembuBDRdescription
Vembu/VembuBDRllm-fuzzy
Range: <4.2.0.1
Vembu/VembuOffsiteDRllm-fuzzy
Range: <4.2.0.1

Patches

Vulnerability mechanics

References

csirt.divd.nl/2021/05/11/Vembu-zero-days/nvdThird Party Advisory
csirt.divd.nl/cases/DIVD-2020-00011/nvdThird Party Advisory
csirt.divd.nl/cves/CVE-2021-26471/nvdThird Party Advisory
www.wbsec.nl/vembunvdBroken LinkThird Party Advisory

News mentions

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cvss	0.637
epss	0.002
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000