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CVE-2021-3959

Server-Side Request Forgery in Bitdefender GravityZone Update Server in Relay Mode (VA-10145)

HIGH
7.5
CVSS Score
Published: December 16, 2021 at 02:35 PM UTC
Updated: June 17, 2026 at 04:06 AM UTC
1 product affected across 1 vendorGravityZone

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Severity
HIGH7.5
Exploit prediction
EPSS 2%

Description

A Server-Side Request Forgery (SSRF) vulnerability in the EPPUpdateService component of Bitdefender Endpoint Security Tools allows an attacker to proxy requests to the relay server. This issue affects: Bitdefender Bitdefender GravityZone versions prior to 3.3.8.272

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

GravityZone· Bitdefender
95%
v < 3.3.8.272
Affected range stops below 3.3.8.272, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

x_refsource_MISCVendor Advisory
Source: [email protected]
https://www.bitdefender.com/support/security-advisories/server-side-request-forgery-in-bitdefender-gravityzone-update-server-in-relay-mode-va-10145

CVSS

7.5HIGH[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-918

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