Server Side Request Forgery in GravityZone Update Server Using Null Bytes (VA-12646)
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- Low · None · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-918 and the CVSS impact.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Bitdefender | GravityZone Update Server | before 3.5.2.689 | 3.5.2.689 | Patch available | CNA |
- GravityZone Update Server VendorBitdefender Affected before 3.5.2.689 Fixed in 3.5.2.689 Patch available CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:bitdefender:gravityzone_update_server:*:*:*:*:*:*:*:* | before 3.5.2.689 | Vulnerable | Bitdefender |
- cpe:2.3:a:bitdefender:gravityzone_update_server:*:*:*:*:*:*:*:* Versions before 3.5.2.689 Vulnerable ·Bitdefender
Remediation
- Fix · CNA GravityZone Update Server (Bitdefender) Fixed in 3.5.2.689
Timeline
- 2026-10-02 Threatist record created from CVE-2025-2245
- 2026-10-03 Alias added: GHSA-gv8r-56hq-95m6
References
Sources
- CVE-2025-2245 · CVE Program
- CVE-2025-2245 · NVD
- FIRST EPSS
- GHSA-gv8r-56hq-95m6 · GitHub Advisory Database · CC BY 4.0
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