CVE-2009-2450
The OAmon.sys kernel driver 3.1.0.0 and earlier in Tall Emu Online Armor Personal Firewall AV+ before 3.5.0.12, and Personal Firewall 3.5 before 3.5.0.14, allows local users to gain privileges via crafted METHOD_NEITHER IOCTL requests to \Device\OAmon…
Does this matter?
A public exploit is published in Exploit-DB (verified) and the impact is high, while EPSS rates exploitation at 0.8%. Anyone can run this; patch or mitigate before the next change window and check exposed instances for signs of use.
Description
The OAmon.sys kernel driver 3.1.0.0 and earlier in Tall Emu Online Armor Personal Firewall AV+ before 3.5.0.12, and Personal Firewall 3.5 before 3.5.0.14, allows local users to gain privileges via crafted METHOD_NEITHER IOCTL requests to \Device\OAmon containing arbitrary kernel addresses, as demonstrated using the 0x830020C3 IOCTL.
- CVSS 2.0
- 7.2 HIGHAV:L/AC:L/Au:N/C:C/I:C/A:C
- EPSS
- 0.77% probability · 55th percentile
- Public exploits
- 1 in Exploit-DB · verified · first 4 June 2009
- CISA KEV
- Not listed
- Weakness
- CWE-119
- Affected
- tallemu/online armor personal firewall av\+ · tallemu/personal firewall
- Source
- cve@mitre.org
EPSS 0.8% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
Public exploits (1)
Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.
References
- http://milw0rm.com/sploits/2009-OAmon_Exp.zipExploit
- http://www.exploit-db.com/exploits/8875
- http://www.ntinternals.org/ntiadv0806/ntiadv0806.html
- http://www.securityfocus.com/bid/35227Exploit
- https://exchange.xforce.ibmcloud.com/vulnerabilities/50960
- http://milw0rm.com/sploits/2009-OAmon_Exp.zipExploit
- http://www.exploit-db.com/exploits/8875
- http://www.ntinternals.org/ntiadv0806/ntiadv0806.html
- http://www.securityfocus.com/bid/35227Exploit
- https://exchange.xforce.ibmcloud.com/vulnerabilities/50960
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.