Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2021-43978

25
FAUCET Score

CVE-2021-43978 is a critical vulnerability affecting Allegro Windows version 3.3.4152.0, where administrator database credentials are hardcoded within its binary files. This flaw allows authenticated users to access and modify sensitive data using these embedded credentials, posing a significant risk to data integrity and confidentiality. With a CVSS score of 8.1 (HIGH), it represents a serious threat due to its low attack complexity and high impact on confidentiality and integrity. Despite its severity, there is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
3.3.4152.0CPE matchmatch criteria
cpe:2.3:a:allegro:allegro:3.3.4152.0:*:*:*:*:windows:*:*

CVSS Data

CVSS version used by this source: 3.1

7.1HIGH

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

Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
4.2
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.74%
Probability of exploitation in next 30 days
EPSS Percentile
50.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0074 is in the 44th percentile among its peer group of 17,829 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 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 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

cds.thalesgroup.com / en/tcs-cert/CVE-2021-43978
excellium-services.com / cert-xlm-advisory/CVE-2021-43978
PatchThird Party Advisory
allegro.be
Vendor Advisory