Medium severity · published Apr 4, 2025
CVE-2025-2245
Server Side Request Forgery in GravityZone Update Server Using Null Bytes (VA-12646)
5.3
CVSS
0.3%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 25% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
GU
GravityZone Update Server · Bitdefender
before 3.5.2.689 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-2245
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-2245
Vendor Advisory
https://www.bitdefender.com/support/security-advisories/server-side-request-forgery-in-gravityzone-update-server-using-null-bytes-va-12646
More from GravityZone Update Server
9.8
CVE-2024-6980
Verbose error handling issue in GravityZone Update Server proxy service