SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2006-4855

The \Device\SymEvent driver in Symantec Norton Personal Firewall 2006 9.1.0.33, and other versions of Norton Personal Firewall, Internet Security, AntiVirus, SystemWorks, Symantec Client Security SCS 1.x, 2.x, 3.0, and 3.1, Symantec AntiVirus Corporate…

EXPLOIT ✓MEDIUM 4.9EPSS 1.32%

Does this matter?

A public exploit is published in Exploit-DB (verified), so the technical barrier is gone even though the severity is medium and EPSS is 1.3%. Treat it as high on anything reachable from the internet.

Description

The \Device\SymEvent driver in Symantec Norton Personal Firewall 2006 9.1.0.33, and other versions of Norton Personal Firewall, Internet Security, AntiVirus, SystemWorks, Symantec Client Security SCS 1.x, 2.x, 3.0, and 3.1, Symantec AntiVirus Corporate Edition SAVCE 8.x, 9.x, 10.0, and 10.1, Symantec pcAnywhere 11.5 only, and Symantec Host, allows local users to cause a denial of service (system crash) via invalid data, as demonstrated by calling DeviceIoControl to send the data.

CVSS 2.0
4.9 MEDIUMAV:L/AC:L/Au:N/C:N/I:N/A:C
EPSS
1.32% probability · 71th percentile
Public exploits
1 in Exploit-DB · verified · first 15 September 2006
CISA KEV
Not listed
Weakness
CWE-399
Affected
symantec/client security · symantec/host ids · symantec/norton antivirus · symantec/norton internet security · symantec/norton personal firewall · symantec/norton system works · symantec/pcanywhere
Source
cve@mitre.org
EPSS trend
0%3%5%26 October 2026: 1.32%26 October 202626 October 2026

EPSS 1.3% 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.

EDB-IDTitleTypePublishedVerified
EDB-28588source ↗Symantec (Multiple Products) - 'SymEvent' Driver Local Denial of Servicewindows · David Matousekdos15 September 2006yes

References

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.