Medium severity5.3NVD Advisory· Published Feb 17, 2021· Updated Jun 17, 2026

CVE-2021-20653

Description

Calsos CSDJ (CSDJ-B 01.08.00 and earlier, CSDJ-H 01.08.00 and earlier, CSDJ-D 01.08.00 and earlier, and CSDJ-A 03.08.00 and earlier) allows remote attackers to bypass access restriction and to obtain unauthorized historical data without access privileges via unspecified vectors.

AI Insight

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

Affected products

Calsos/CSDJ-Bllm-create
Range: <=01.08.00
NEC/Calsos CSDJllm-create
Range: <=03.08.00
NEC Platforms, Ltd./Calsos Csdjv5
Range: CSDJ-B 01.08.00 and earlier, CSDJ-H 01.08.00 and earlier, CSDJ-D 01.08.00 and earlier, and CSDJ-A 03.08.00 and earlier

Patches

Vulnerability mechanics

References

jpn.nec.com/security-info/secinfo/nv21-006.htmlnvdThird Party Advisory
jvn.jp/en/jp/JVN87164507/index.htmlnvdThird Party Advisory

News mentions

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cvss	0.345
epss	0.001
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000