CVE-2021-42809

MEDIUMCVSS 6.5

6.5

Improper Access Control of Dynamically-Managed Code Resources (DLL) in Thales Sentinel Protection Installer could allow the execution of arbitrary code.

CVSS v3: 6.5
EG Score: —
EPSS: —
KEV: Not listed

Published

December 20, 2021

Last Modified

November 21, 2024

References (2)

psirt@thalesgrouphttps://cpl.thalesgroup.com/fr/software-monetization/security-updates
af854a3a-2127-422b-91ae-364da2661108https://cpl.thalesgroup.com/fr/software-monetization/security-updates

Weakness Classification(1)

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

CWE-913

Data Freshness Timeline

(refreshed 9× in last 7d / 9× 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.

2026-05-27 13:39 UTCepss_batch
2026-05-27 13:39 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 06:04 UTCEG score recompute
2026-05-26 06:04 UTCGHSA enrichment

Frequently asked(4)

What is CVE-2021-42809?

CVE-2021-42809 is a medium vulnerability published on December 20, 2021. Improper Access Control of Dynamically-Managed Code Resources (DLL) in Thales Sentinel Protection Installer could allow the execution of arbitrary code.

When was CVE-2021-42809 disclosed?

CVE-2021-42809 was first published in the National Vulnerability Database on December 20, 2021, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

What is the CVSS score of CVE-2021-42809?

CVE-2021-42809 has a CVSS v3 base score of 6.5 (NVD).

How do I remediate CVE-2021-42809?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-42809, 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-2021-42809

📅 Published

🔄 Last Modified

🔗 References (2)