CVE-2007-6189
A certain ActiveX control in (1) OScan8.ocx and (2) Oscan81.ocx in BitDefender Online Anti-Virus...
A certain ActiveX control in (1) OScan8.ocx and (2) Oscan81.ocx in BitDefender Online Anti-Virus Scanner 8.0 allows remote attackers to execute arbitrary code via a long argument to the InitX method that begins with a "%%" sequence, which is misinterpreted as a Unicode string and decoded twice, leading to improper memory allocation and a heap-based buffer overflow.
Exploit likelihood
What each source reports
NVD Score used
A certain ActiveX control in (1) OScan8.ocx and (2) Oscan81.ocx in BitDefender Online Anti-Virus Scanner 8.0 allows remote attackers to execute arbitrary code via a long argument to the InitX method that begins with a "%%" sequence, which is misinterpreted as a Unicode string and decoded twice, leading to improper memory allocation and a heap-based buffer overflow.
- Record
CVE-2007-6189- CVSS 2.0
- 9.3 High
AV:N/AC:M/Au:N/C:C/I:C/A:C - Weakness
- CWE-119
- Updated
- 2026-11-02
CVE List No score
A certain ActiveX control in (1) OScan8.ocx and (2) Oscan81.ocx in BitDefender Online Anti-Virus Scanner 8.0 allows remote attackers to execute arbitrary code via a long argument to the InitX method that begins with a "%%" sequence, which is misinterpreted as a Unicode string and decoded twice, leading to improper memory allocation and a heap-based buffer overflow.
- Record
CVE-2007-6189- Updated
- 2026-11-02
EUVDEUVD-2007-6157 No score
A certain ActiveX control in (1) OScan8.ocx and (2) Oscan81.ocx in BitDefender Online Anti-Virus Scanner 8.0 allows remote attackers to execute arbitrary code via a long argument to the InitX method that begins with a "%%" sequence, which is misinterpreted as a Unicode string and decoded twice, leading to improper memory allocation and a heap-based buffer overflow.
- Record
EUVD-2007-6157- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-8w62-3h89-722w No score
A certain ActiveX control in (1) OScan8.ocx and (2) Oscan81.ocx in BitDefender Online Anti-Virus...
A certain ActiveX control in (1) OScan8.ocx and (2) Oscan81.ocx in BitDefender Online Anti-Virus Scanner 8.0 allows remote attackers to execute arbitrary code via a long argument to the InitX method that begins with a "%%" sequence, which is misinterpreted as a Unicode string and decoded twice, leading to improper memory allocation and a heap-based buffer overflow.
- Record
GHSA-8w62-3h89-722w- Weakness
- CWE-119
- Updated
- 2026-11-02
Affected products
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| Exploit-DB | BitDefender Online Scanner 8 - ActiveX Heap Overflow | 2007-11-27 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| aliases, exploits, facts, references, title | Exploit-DB, GitHub Advisories | |
| first indexed | CVE List, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2007-6189 is a high vulnerability (CVSS 9.3) in Bitdefender Online Anti-virus Scanner, published November 30, 2007. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 8.08%, the 94th percentile. No source names a fixed version.
References
securitytracker.com/id?1018986
research.eeye.com/html/advisories/published/AD20071120.html
securityreason.com/securityalert/3405
vupen.com/english/advisories/2007/3935
secunia.com/advisories/27717
exploit-db.com/exploits/4663
securityfocus.com/archive/1/483986/100/100/threaded
nvd.nist.gov/vuln/detail/CVE-2007-6189
github.com/advisories/GHSA-8w62-3h89-722w