CVE-2025-34128
Published: 16 July 2025
Summary
CVE-2025-34128 is a high-severity Code Injection (CWE-94) vulnerability in Githubusercontent (inferred from references). Its CVSS base score is 8.6 (High).
Operationally, ranked in the top 1.3% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
Deeper analysis
A buffer overflow vulnerability exists in the X360 VideoPlayer ActiveX control (VideoPlayer.ocx) version 2.6 when handling overly long arguments to the ConvertFile() method. The flaw, tracked as CVE-2025-34128 and associated with CWE-94 and CWE-120, permits memory corruption that can result in arbitrary code execution inside the affected process. It carries a CVSS 4.0 score of 8.6 reflecting a network vector, low attack complexity, and no required privileges.
An unauthenticated remote attacker can trigger the issue by supplying specially crafted input to the vulnerable method, typically through a web page that instantiates the ActiveX control. Successful exploitation grants code execution in the security context of the hosting process, with the CVSS metrics indicating that user interaction is required to reach the vulnerable code path.
Public exploit modules and proof-of-concept code have been published, including a Metasploit module and multiple Exploit-DB entries, while an EPSS score of 0.7039 indicates substantial exploitation interest. A Fortiguard IPS signature (40167) has also been issued for detection.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2025-21743
Vulnerability details
A buffer overflow vulnerability exists in the X360 VideoPlayer ActiveX control (VideoPlayer.ocx) version 2.6 when handling overly long arguments to the ConvertFile() method. An attacker can exploit this vulnerability by supplying crafted input to cause memory corruption and execute arbitrary…
more
code within the context of the current process.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Platform-independent managed code eliminates the need for unchecked native buffer copies that are the root cause of classic buffer overflows.
Makes persistent code injection into loaded programs impossible when the executable image itself resides on hardware-protected read-only media.
Dynamically generated code can be produced and executed inside the isolated chamber, preventing host compromise from code-injection payloads.
Validates inputs used in dynamic code generation to block injected directives.
Directly prevents execution of attacker-supplied code written into data memory regions.