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CVE-2021-3153

20
FAUCET Score

CVE-2021-3153 describes a security bypass vulnerability in HashiCorp Terraform Enterprise versions up to v202102-2. The flaw allowed users within an organization to bypass a mandatory two-factor authentication (2FA) setting, potentially compromising account security. Rated Medium severity with a CVSS score of 6.5, this vulnerability could be exploited remotely with low attack complexity, leading to high impact on integrity by circumventing 2FA enforcement. There is no impact on confidentiality or availability. Currently, there is no evidence of active exploitation, nor are there publicly available exploit tools like Metasploit modules or Nuclei templates. Community discussion and media coverage for this CVE are minimal, indicating low public awareness.

Impacted Technologies

VendorProductVersion(s)CPE
<= 202102-2CPE matchmatch criteria
cpe:2.3:a:hashicorp:terraform_enterprise:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.5MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.65%
Probability of exploitation in next 30 days
EPSS Percentile
47.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0065 is in the 58th percentile among its peer group of 21,974 CVEs.

Social Chatter

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

Media Mentions

No media coverage found for this CVE.

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

Remediation

Remediation records are not available for this CVE.

References

discuss.hashicorp.com / t/hcsec-2021-06-terraform-enterprise-organization-level-mfa-requirement-was-not-enforced/22401
Vendor Advisory