CVE-2021-27426

CRITICALNVD 9.89.8—

9.8

GE UR IED firmware versions prior to version 8.1x with “Basic” security variant does not allow the disabling of the “Factory Mode,” which is used for servicing the IED by a “Factory” user.

CVSS v3: 9.8
EG Score: 9.8(medium)
EPSS: 52.5%
KEV: Not listed

Published

March 23, 2022

Last Modified

November 21, 2024

References (4)

ics-cert@hqhttps://www.cisa.gov/uscert/ics/advisories/icsa-21-075-02
ics-cert@hqhttps://www.gegridsolutions.com/Passport/Login.aspx
af854a3a-2127-422b-91ae-364da2661108https://www.cisa.gov/uscert/ics/advisories/icsa-21-075-02
af854a3a-2127-422b-91ae-364da2661108https://www.gegridsolutions.com/Passport/Login.aspx

Weakness Classification(1)

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

CWE-453

Data Freshness Timeline

(refreshed 7× in last 7d / 7× 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 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 01:10 UTCEG score recompute
2026-05-26 01:10 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2021-27426?

CVE-2021-27426 is a critical vulnerability published on March 23, 2022. GE UR IED firmware versions prior to version 8.1x with “Basic” security variant does not allow the disabling of the “Factory Mode,” which is used for servicing the IED by a “Factory” user.

When was CVE-2021-27426 disclosed?

CVE-2021-27426 was first published in the National Vulnerability Database on March 23, 2022, 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-2021-27426 actively exploited?

CVE-2021-27426 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 52.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2021-27426?

CVE-2021-27426 has a CVSS v3 base score of 9.8 (NVD).

How do I remediate CVE-2021-27426?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-27426, 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

See which npm, PyPI, Go, and Maven packages are affected by CVE-2021-27426

Explore →

Is Your Infrastructure Affected by CVE-2021-27426?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs

CVE-2021-27426

📅 Published

🔄 Last Modified

🔗 References (4)