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Fencer Vulns
high 7.2

CVE-2009-2450 json

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 b…

published 2009-07-13 17 y ago modified 2026-06-16 4 mo ago also EUVD-2009-2445

cvss
7.2
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.8%
EPSS 0.8% chance of exploitation in 30 days, percentile 55%
public exploits
1
Exploit-DB

Summary

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.

Timeline

  1. First public exploit (EDB-8875)
  2. Published

Exploit prediction

0.77% chance of exploitation in the next 30 days, higher than 55% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-8875 Online Armor < 3.5.0.12 - 'OAmon.sys' Local Privilege Escalation local, 2009-06-04
  • securityfocus.com http://www.securityfocus.com/bid/35227 referenced PoC, tagged "exploit" by a source, unverified
  • milw0rm.com http://milw0rm.com/sploits/2009-OAmon_Exp.zip referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 2.0 7.2 AV:L/AC:L/Au:N/C:C/I:C/A:C

Classification

Weakness
  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.