CVE-2020-12355

MEDIUMNVD 6.86.8—

6.8

Authentication bypass by capture-replay in RPMB protocol message authentication subsystem in Intel(R) TXE versions before 4.0.30 may allow an unauthenticated user to potentially enable escalation of privilege via physical access.

CVSS v3: 6.8
EG Score: 6.8(medium)
EPSS: 31.6%
KEV: Not listed

Published

November 12, 2020

Last Modified

November 4, 2025

References (5)

secure@intelhttps://security.netapp.com/advisory/ntap-20201113-0005/
secure@intelhttps://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00391
af854a3a-2127-422b-91ae-364da2661108https://security.netapp.com/advisory/ntap-20201113-0005/
af854a3a-2127-422b-91ae-364da2661108https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00391
af854a3a-2127-422b-91ae-364da2661108https://www.kb.cert.org/vuls/id/231329

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
2026-05-26 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
2026-05-23 05:19 UTCEG score recompute
2026-05-23 05:19 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2020-12355?

CVE-2020-12355 is a medium vulnerability published on November 12, 2020. Authentication bypass by capture-replay in RPMB protocol message authentication subsystem in Intel(R) TXE versions before 4.0.30 may allow an unauthenticated user to potentially enable escalation of privilege via physical access.

When was CVE-2020-12355 disclosed?

CVE-2020-12355 was first published in the National Vulnerability Database on November 12, 2020, with the most recent update on November 4, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2020-12355 actively exploited?

CVE-2020-12355 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 31.6% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2020-12355?

CVE-2020-12355 has a CVSS v3 base score of 6.8 (NVD).

How do I remediate CVE-2020-12355?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2020-12355, 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-2020-12355

📅 Published

🔄 Last Modified

🔗 References (5)