Vulnerability Database

383,371

Total vulnerabilities in the database

CVE-2006-4855 — symantec / host_ids

Resource Management Errors

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.

  • Published: Sep 19, 2006
  • Updated: Sep 13, 2026
  • CVE: CVE-2006-4855
  • Severity: Medium
  • Exploit:
  • CISA KEV:

CVSS v2:

  • Severity: Medium
  • Score: 4.9
  • AV:L/AC:L/Au:N/C:N/I:N/A:C

CWEs:

Software Affected versions
symantec / host_ids All versions
symantec / client_security = 1.0
symantec / client_security = 1.0.0_b8.01.9378
symantec / client_security = 1.0.1
symantec / client_security = 1.0.1_build_8.01.425a-mr1
symantec / client_security = 1.0.1_build_8.01.429c-mr2
symantec / client_security = 1.0.1_build_8.01.434-mr3
symantec / client_security = 1.0.1_build_8.01.437
symantec / client_security = 1.0.1_build_8.01.446-mr4
symantec / client_security = 1.0.1_build_8.01.457-mr5
symantec / client_security = 1.0.1_build_8.01.460-mr6
symantec / client_security = 1.0.1_build_8.01.464-mr7
symantec / client_security = 1.0.1_build_8.01.471-mr8
symantec / client_security = 1.0.1_build_8.01.501-mr9
symantec / client_security = 1.0_build_8.01.9374
symantec / client_security = 1.1
symantec / client_security = 1.1.1
symantec / client_security = 1.1.1_build_393
symantec / client_security = 1.1.1_mr1_build_8.1.1.314a
symantec / client_security = 1.1.1_mr2_build_8.1.1.319
symantec / client_security = 1.1.1_mr3_build_8.1.1.323
symantec / client_security = 1.1.1_mr4_build_8.1.1.329
symantec / client_security = 1.1.1_mr5_build_8.1.1.336
symantec / client_security = 1.1.1_mr6_b8.1.1.266
symantec / client_security = 1.1_stm_b8.1.0.825a
symantec / client_security = 2.0
symantec / client_security = 2.0.1_build_9.0.1.1000-mr1
symantec / client_security = 2.0.2_build_9.0.2.1000-mr2
symantec / client_security = 2.0.3_build_9.0.3.1000-mr3
symantec / client_security = 2.0.5_build_1100
symantec / client_security = 2.0_scf_7.1
symantec / client_security = 2.0_stm_build_9.0.0.338
symantec / client_security = 3.0
symantec / client_security = 3.1
symantec / norton_antivirus = 2.1
symantec / norton_antivirus = 8.0
symantec / norton_antivirus = 8.0.1
symantec / norton_antivirus = 8.0.1.425a
symantec / norton_antivirus = 8.0.1.425c
symantec / norton_antivirus = 8.0.1.501
symantec / norton_antivirus = 8.0.1.9374
symantec / norton_antivirus = 8.0.1.9378
symantec / norton_antivirus = 8.1
symantec / norton_antivirus = 8.1.0.825a
symantec / norton_antivirus = 8.1.1
symantec / norton_antivirus = 8.1.1.319
symantec / norton_antivirus = 8.1.1.323
symantec / norton_antivirus = 8.1.1.329
symantec / norton_antivirus = 8.1.1.366
symantec / norton_antivirus = 8.1.1.377
symantec / norton_antivirus = 8.1.1_build8.1.1.314a
symantec / norton_antivirus = 8.1.1_build393
symantec / norton_antivirus = 8.01.434
symantec / norton_antivirus = 8.01.437
symantec / norton_antivirus = 8.01.446
symantec / norton_antivirus = 8.01.457
symantec / norton_antivirus = 8.01.460
symantec / norton_antivirus = 8.01.464
symantec / norton_antivirus = 8.01.471
symantec / norton_antivirus = 9.0
symantec / norton_antivirus = 9.0.0.338
symantec / norton_antivirus = 9.0.1.1.1000
symantec / norton_antivirus = 9.0.2.1000
symantec / norton_antivirus = 9.0.3.1000
symantec / norton_antivirus = 9.0.4
symantec / norton_antivirus = 9.0.5
symantec / norton_antivirus = 9.0.5.1100
symantec / norton_antivirus = 10.0
symantec / norton_antivirus = 10.0.2.2000
symantec / norton_antivirus = 10.0.2.2001
symantec / norton_antivirus = 10.0.2.2002
symantec / norton_antivirus = 10.0.2.2010
symantec / norton_antivirus = 10.0.2.2011
symantec / norton_antivirus = 10.0.2.2020
symantec / norton_antivirus = 10.0.2.2021
symantec / norton_antivirus = 10.1
symantec / norton_antivirus = 2003
symantec / norton_antivirus = 2004
symantec / norton_antivirus = 2005
symantec / norton_antivirus = 2006
symantec / norton_antivirus = 2007
symantec / norton_internet_security = 2003
symantec / norton_internet_security = 2004
symantec / norton_internet_security = 2005
symantec / norton_internet_security = 2006
symantec / norton_internet_security = 2007
symantec / norton_personal_firewall = 2003
symantec / norton_personal_firewall = 2004
symantec / norton_personal_firewall = 2005
symantec / norton_personal_firewall = 2006
symantec / norton_system_works = 2003_professional_edition
symantec / norton_system_works = 2004
symantec / norton_system_works = 2004_professional_edition
symantec / norton_system_works = 2005
symantec / norton_system_works = 2005_premier
symantec / norton_system_works = 2006
symantec / pcanywhere = 11.5

Frequently Asked Questions

A security vulnerability is a weakness in software, hardware, or configuration that can be exploited to compromise confidentiality, integrity, or availability. Many vulnerabilities are tracked as CVEs (Common Vulnerabilities and Exposures), which provide a standardized identifier so teams can coordinate patching, mitigation, and risk assessment across tools and vendors.

CVSS (Common Vulnerability Scoring System) estimates technical severity, but it doesn't automatically equal business risk. Prioritize using context like internet exposure, affected asset criticality, known exploitation (proof-of-concept or in-the-wild), and whether compensating controls exist. A "Medium" CVSS on an exposed, production system can be more urgent than a "Critical" on an isolated, non-production host.

A vulnerability is the underlying weakness. An exploit is the method or code used to take advantage of it. A zero-day is a vulnerability that is unknown to the vendor or has no publicly available fix when attackers begin using it. In practice, risk increases sharply when exploitation becomes reliable or widespread.

Recurring findings usually come from incomplete Asset Discovery, inconsistent patch management, inherited images, and configuration drift. In modern environments, you also need to watch the software supply chain: dependencies, containers, build pipelines, and third-party services can reintroduce the same weakness even after you patch a single host. Unknown or unmanaged assets (often called Shadow IT) are a common reason the same issues resurface.

Use a simple, repeatable triage model: focus first on externally exposed assets, high-value systems (identity, VPN, email, production), vulnerabilities with known exploits, and issues that enable remote code execution or privilege escalation. Then enforce patch SLAs and track progress using consistent metrics so remediation is steady, not reactive.

SynScan combines attack surface monitoring and continuous security auditing to keep your inventory current, flag high-impact vulnerabilities early, and help you turn raw findings into a practical remediation plan.