CVE-2025-34128
CVE-2025-34128 is a high-severity vulnerability with a CVSS 4.0 base score of 8.6. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-94.
Key facts
- Severity: High (CVSS 4.0 base score 8.6)
- EPSS exploit prediction: 1% (54th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2025-21743
- Weakness: CWE-94
- Published:
- Last modified:
Description
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 code within the context of the current process.
Frequently asked questions
- What is CVE-2025-34128?
- 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 code within the context of the current process.
- How severe is CVE-2025-34128?
- CVE-2025-34128 has a CVSS 4.0 base score of 8.6, rated high severity.
- Is CVE-2025-34128 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (54th percentile), an estimate of the probability of exploitation in the next 30 days.
- How do I fix CVE-2025-34128?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- Does CVE-2025-34128 have an EU (EUVD) identifier?
- Yes. CVE-2025-34128 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-21743.
- When was CVE-2025-34128 published?
- CVE-2025-34128 was published on 2025-07-16 and last updated on 2026-06-17.
References
- https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/windows/browser/x360_video_player_set_text_bof.rb
- https://rh0dev.github.io/blog/2015/fun-with-info-leaks/
- https://www.exploit-db.com/exploits/35948
- https://www.exploit-db.com/exploits/36100
- https://www.fortiguard.com/encyclopedia/ips/40167/x360-videoplayer-activex-control-buffer-overflow
- https://www.vulncheck.com/advisories/x360-videoplayer-activex-control-buffer-overflow
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