CVE-2021-3554: bitdefender endpoint_security_tools Improper Access Control
Vulnerability summary
CVE-2021-3554 is a critical (CVSS 10.0) Improper Access Control vulnerability in bitdefender endpoint_security_tools. EPSS estimates a 2.12% chance of exploitation in the next 30 days, higher than 81.5% of scored vulnerabilities.
Timeline
- 24-11-2021PublishedVulnerability first disclosed.
- 16-09-2024Last modifiedVulnerability information updated.
Description
Improper Access Control vulnerability in the patchesUpdate API as implemented in Bitdefender Endpoint Security Tools for Linux as a relay role allows an attacker to manipulate the remote address used for pulling patches. This issue affects: Bitdefender Endpoint Security Tools for Linux versions prior to 6.6.27.390; versions prior to 7.1.2.33. Bitdefender Unified Endpoint versions prior to 6.2.21.160. Bitdefender GravityZone versions prior to 6.24.1-1.
CVSS metrics
3 scores · 2 sources · 2 versions- CVE.orgCNA9.0CriticalCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:HDiffers
EPSS trend
Probability
2.12%
Chance of exploitation in the next 30 days
Percentile
82%
Versus all other CVEs
30-day change
-0.51 pp
From 2.63% on 19-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Bitdefender4 products
- endpoint_security_tools< 6.6.27.390 | ≥ 7.0.0.00, < 7.1.2.33
- endpoint security tools for linux≥ unspecified, < 6.6.27.390 | ≥ unspecified, < 7.1.2.33
- gravityzone≥ unspecified, < 6.24.1-1 | < 6.24.1-1 | 6.24.1-1
- unified endpoint≥ unspecified, < 6.2.21.160
1 vendor · 4 products