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CVE-2021-3579

20
FAUCET Score

CVE-2021-3579 is an Incorrect Default Permissions vulnerability affecting Bitdefender Endpoint Security Tools and Total Security for Windows versions prior to 7.2.1.65. A local attacker can exploit this flaw to elevate privileges to NT AUTHORITY\SYSTEM. This vulnerability carries a high CVSS score of 7.8, indicating a significant risk with high impact on confidentiality, integrity, and availability, requiring low attack complexity and user privileges. Currently, there is no known active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 7.2.1.65CPE matchmatch criteria
cpe:2.3:a:bitdefender:endpoint_security_tools:*:*:*:*:*:windows:*:*
< 7.2.1.65CPE matchmatch criteria
cpe:2.3:a:bitdefender:total_security:*:*:*:*:*:*:*:*

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
0.71%
Probability of exploitation in next 30 days
EPSS Percentile
49.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0071 is in the 86th percentile among its peer group of 17,070 CVEs.

Social Chatter

No social media mentions found for this CVE.

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

Remediation records are not available for this CVE.

References

bitdefender.com / support/security-advisories/incorrect-default-permissions-vulnerability-in-bdservicehost-exe-and-vulnerability-scan-exe-va-9848
Vendor Advisory
zerodayinitiative.com / advisories/ZDI-21-1277
Third Party AdvisoryVDB Entry