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CVE-2021-28210

24
FAUCET Score

CVE-2021-28210 describes an unlimited recursion vulnerability within the DxeCore component of EDK II, impacting tianocore edk2 products. This vulnerability carries a CVSS score of 7.8 (High), indicating that a local attacker with low privileges can achieve high impact on confidentiality, integrity, and availability without user interaction. Currently, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 202008CPE matchmatch criteria
cpe:2.3:a:tianocore:edk2:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.8HIGH

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.40%
Probability of exploitation in next 30 days
EPSS Percentile
32.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0040 is in the 72nd percentile among its peer group of 17,061 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: edk2-0:20210527gite1999b264f1f-3.el8
View patch

Vendor Advisories (2)

microsoft2021-Jun/CVE-2021-28210

An unlimited recursion in DxeCore in EDK II.

Jun 8, 2021
redhatCVE-2021-28210Moderate

edk2: unlimited FV recursion, round 2

Nov 19, 2020

References

bugzilla.tianocore.org / show_bug.cgi
ExploitIssue TrackingPatchVendor Advisory