CVE-2021-3553 json
Server-Side Request Forgery in EPPUpdateService remote config file (VA-9825)
published 2021-11-24 4 y ago modified 2026-06-17 4 mo ago also EUVD-2021-26864
- cvss
- 5.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.3%
- EPSS 1.3% chance of exploitation in 30 days, percentile 69%
- public exploits
- 0
- none known
Summary
A Server-Side Request Forgery (SSRF) vulnerability in the EPPUpdateService of Bitdefender Endpoint Security Tools allows an attacker to use the Endpoint Protection relay as a proxy for any remote host. This issue affects: Bitdefender Endpoint Security Tools versions prior to 6.6.27.390; versions prior to 7.1.2.33. Bitdefender Unified Endpoint for Linux versions prior to 6.2.21.160. Bitdefender GravityZone versions prior to 6.24.1-1.
Patch / fix
- Bitdefender Endpoint Security Tools 6.6.27.390, 7.1.2.33
- Bitdefender Unified Endpoint for Linux 6.2.21.160
- Bitdefender GravityZone 6.24.1-1
Exploit prediction
1.25% chance of exploitation in the next 30 days, higher than 69% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 5.3 | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N |
| NVD | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
| NVD | 2.0 | 5.0 | AV:N/AC:L/Au:N/C:P/I:N/A:N |
Affected products
- Bitdefender Endpoint Security Tools
- Bitdefender Unified Endpoint for Linux
- Bitdefender GravityZone
Classification
- Weakness
-
- CWE-918 Server-Side Request Forgery
References
Sources
- CVE List CVE-2021-3553
- NVD CVE-2021-3553
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