CVE-2021-42083

Exploitation

Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.

SSVC decision

Not assessed by CISA

EPSS probability

0.55% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 43.7% of scored records. A rank, not a probability.

NVD base score

5.4 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2023-07-10 06:29Z3 YR AGO

Last updated

2025-09-22 06:40Z11 MO AGO

Reserved

2021-10-07

Assigning CNA

DIVD

Record state

PUBLISHED

Severity

High (CVSS 8.7)

CNA CVSS vector

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

Weaknesses

• CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')Base

Data version

5.1

Document digest

98379cc1f984e95042cb3ef2534bb48f9088f63b239ed7717e226f4492014b7a

• www.wbsec.nlhttps://www.wbsec.nl/osnexusthird-party-advisorytechnical-descriptionexploit
• csirt.divd.nlhttps://csirt.divd.nl/DIVD-2021-00020/third-party-advisory
• www.osnexus.comhttps://www.osnexus.com/products/software-defined-storageproduct
• csirt.divd.nlhttps://csirt.divd.nl/CVE-2021-42083third-party-advisoryexploittechnical-description
• www.divd.nlhttps://www.divd.nl/DIVD-2021-00020third-party-advisory