CVE-2021-22771

HIGHNVD 7.37.3—

7.3

A CWE-1236: Improper Neutralization of Formula Elements in a CSV File vulnerability exists in Easergy T300 with firmware V2.7.1 and older that would allow arbitrary command execution.

CVSS v3: 7.3
EG Score: 7.3(medium)
EPSS: 52.3%
KEV: Not listed

Published

July 21, 2021

Last Modified

November 21, 2024

References (2)

cybersecurity@sehttp://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2021-194-02
af854a3a-2127-422b-91ae-364da2661108http://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2021-194-02

Weakness Classification(1)

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

CWE-1236Improper Neutralization of Formula Elements in a CSV File

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
2026-05-26 13:42 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 13:16 UTCEG score recompute
2026-05-26 13:16 UTCGHSA enrichment
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-24 16:49 UTCepss_batch
2026-05-24 12:21 UTCOSV refresh

Frequently asked(5)

What is CVE-2021-22771?

CVE-2021-22771 is a high vulnerability published on July 21, 2021. A CWE-1236: Improper Neutralization of Formula Elements in a CSV File vulnerability exists in Easergy T300 with firmware V2.7.1 and older that would allow arbitrary command execution.

When was CVE-2021-22771 disclosed?

CVE-2021-22771 was first published in the National Vulnerability Database on July 21, 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-2021-22771 actively exploited?

CVE-2021-22771 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 52.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2021-22771?

CVE-2021-22771 has a CVSS v3 base score of 7.3 (NVD).

How do I remediate CVE-2021-22771?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-22771, 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-2021-22771

📅 Published

🔄 Last Modified

🔗 References (2)