CVE-2021-3579 json
Incorrect Default Permissions vulnerability in bdservicehost.exe and Vulnerability.Scan.exe
published 2021-10-28 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-26888
- cvss
- 7.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.7%
- EPSS 0.7% chance of exploitation in 30 days, percentile 53%
- public exploits
- 0
- none known
Summary
Incorrect Default Permissions vulnerability in the bdservicehost.exe and Vulnerability.Scan.exe components as used in Bitdefender Endpoint Security Tools for Windows, Total Security allows a local attacker to elevate privileges to NT AUTHORITY\SYSTEM This issue affects: Bitdefender Endpoint Security Tools for Windows versions prior to 7.2.1.65. Bitdefender Total Security versions prior to 7.2.1.65.
Patch / fix
- Bitdefender ENdpoint Security Tools for Windows 7.2.1.65
- Bitdefender Total Security 7.2.1.65
Exploit prediction
0.69% chance of exploitation in the next 30 days, higher than 53% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVD | 3.1 | 7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 4.6 | AV:L/AC:L/Au:N/C:P/I:P/A:P |
Affected products
- Bitdefender ENdpoint Security Tools for Windows
- Bitdefender Total Security
Classification
- Weakness
-
- CWE-276 Incorrect Default Permissions
References
-
bitdefender.com
/support/security-advisories/incorrect-default-permissions-vulnerability-in-bdservicehost-exe-and-vulnerabilit
vendor-advisory
-
zerodayinitiative.com
/advisories/ZDI-21-1277/
third-party-advisory, vdb-entry
Sources
- CVE List CVE-2021-3579
- NVD CVE-2021-3579
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