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CVE-2021-33077

21
FAUCET Score

CVE-2021-33077 describes an insufficient control flow management vulnerability in firmware affecting various Intel SSD, Intel Optane SSD, and Intel SSD DC products. This flaw allows an unauthenticated attacker with physical access to potentially escalate privileges, posing a high risk to confidentiality, integrity, and availability. While rated as medium severity (CVSS 6.8), there is currently no public exploit code available, nor is it listed on the KEV catalog, and community discussion and media coverage remain low.

Impacted Technologies

VendorProductVersion(s)CPE
< e2010600CPE matchmatch criteria
cpe:2.3:o:intel:optane_ssd_dc_p4800x_firmware:*:*:*:*:*:*:*:*
< e2010600CPE matchmatch criteria
cpe:2.3:o:intel:optane_ssd_dc_p4801x_firmware:*:*:*:*:*:*:*:*
< l0310200CPE matchmatch criteria
cpe:2.3:o:intel:optane_ssd_p5800x_firmware:*:*:*:*:*:*:*:*
< pgf028kCPE matchmatch criteria
cpe:2.3:o:intel:optane_memory_h20_with_solid_state_storage_firmware:*:*:*:*:*:*:*:*
< tgf061kCPE matchmatch criteria
cpe:2.3:o:intel:optane_memory_h10_with_solid_state_storage_firmware:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.8MEDIUM

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

Attack Vector
PHYSICAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
0.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.26%
Probability of exploitation in next 30 days
EPSS Percentile
17.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0026 is in the 35th percentile among its peer group of 1,532 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.2 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

intel.com / content/www/us/en/security-center/advisory/intel-sa-00563.html
MitigationVendor Advisory