Is CVE-2021-33077 in the CISA KEV catalog?

No. CVE-2021-33077 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-33077?

CVE-2021-33077 has a CVSS v3 base score of 6.8 (MEDIUM).

What is the EPSS score for CVE-2021-33077?

CVE-2021-33077 has an EPSS score of 0.26% (17th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-33077?

Upgrade optane memory h10 with solid state storage firmware to tgf061k or later. Fixes are available for 7 affected products.

CVE & CISA-KEV Catalog

CVE-2021-33077

MEDIUM

6.8

CVSS v3

NVD

Description

Insufficient control flow management in firmware for some Intel(R) SSD, Intel(R) Optane(TM) SSD and Intel(R) SSD DC Products may allow an unauthenticated user to potentially enable escalation of privilege via physical access.

How to fix

Remediation Available

optane memory h10 with solid state storage firmwareNVD

Affected:< tgf061kFixed in:tgf061kCVE-2021-33077derived from NVD

optane memory h20 with solid state storage firmwareNVD

Affected:< pgf028kFixed in:pgf028kCVE-2021-33077derived from NVD

optane ssd 900p firmwareNVD

Affected:< fw600Fixed in:fw600CVE-2021-33077derived from NVD

optane ssd 905p firmwareNVD

Affected:< fw600Fixed in:fw600CVE-2021-33077derived from NVD

optane ssd dc p4800x firmwareNVD

Affected:< e2010600Fixed in:e2010600CVE-2021-33077derived from NVD

optane ssd dc p4801x firmwareNVD

Affected:< e2010600Fixed in:e2010600CVE-2021-33077derived from NVD

optane ssd p5800x firmwareNVD

Affected:< l0310200Fixed in:l0310200CVE-2021-33077derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorPhysical

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploit Intelligence

0.26%probability of exploitation in 30 days

17thpercentile

Low risk: more likely to be exploited than 17% of all known CVEs.

References

Vendor Advisory1

intel.com

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-05-05.