CVE-2021-43215

CRITICALNVD 9.89.8—

9.8

iSNS Server Memory Corruption Vulnerability Can Lead to Remote Code Execution

CVSS v3: 9.8
EG Score: 9.8(medium)
EPSS: 89.4%
KEV: Not listed

Published

December 15, 2021

Last Modified

November 21, 2024

References (2)

secure@microsofthttps://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-43215
af854a3a-2127-422b-91ae-364da2661108https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-43215

Frequently asked(5)

What is CVE-2021-43215?

CVE-2021-43215 is a critical vulnerability published on December 15, 2021. iSNS Server Memory Corruption Vulnerability Can Lead to Remote Code Execution

When was CVE-2021-43215 disclosed?

CVE-2021-43215 was first published in the National Vulnerability Database on December 15, 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.

Is CVE-2021-43215 actively exploited?

CVE-2021-43215 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 89.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2021-43215?

CVE-2021-43215 has a CVSS v3 base score of 9.8 (NVD).

How do I remediate CVE-2021-43215?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-43215, 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.

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CVE-2021-43215

📅 Published

🔄 Last Modified

🔗 References (2)