CVE-2021-3554 json
Improper Access Control vulnerability in the patchesUpdate API
published 2021-11-24 4 y ago modified 2026-06-17 4 mo ago also EUVD-2021-26865
- cvss
- 9.0
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 2.1%
- EPSS 2.1% chance of exploitation in 30 days, percentile 81%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- Bitdefender Endpoint Security Tools for Linux 6.6.27.390, 7.1.2.33
- Bitdefender Unified Endpoint 6.2.21.160
- Bitdefender GravityZone 6.24.1-1
Exploit prediction
2.12% chance of exploitation in the next 30 days, higher than 81% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 9.0 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H |
| NVD | 3.1 | 10.0 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H |
| NVD | 2.0 | 7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P |
Affected products
- Bitdefender Endpoint Security Tools for Linux
- Bitdefender Unified Endpoint
- Bitdefender GravityZone
Classification
- Weakness
-
- CWE-284 Improper Access Control
References
Sources
- CVE List CVE-2021-3554
- NVD CVE-2021-3554
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