Vulnerability Database

383,371

Total vulnerabilities in the database

CVE-2006-3455 — symantec / client_security

The SAVRT.SYS device driver, as used in Symantec AntiVirus Corporate Edition 8.1 and 9.0.x up to 9.0.3, and Symantec Client Security 1.1 and 2.0.x up to 2.0.3, allows local users to execute arbitrary code via a modified address for the output buffer argument to the DeviceIOControl function.

  • Published: Oct 23, 2006
  • Updated: Sep 13, 2026
  • CVE: CVE-2006-3455
  • Severity: Medium
  • Exploit:
  • CISA KEV:

CVSS v2:

  • Severity: Medium
  • Score: 4.3
  • AV:L/AC:L/Au:S/C:P/I:P/A:P

No CWE or OWASP classifications available.

Software Affected versions
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
symantec / client_security = 2.0.1_build_9.0.1.1000-mr1
symantec / client_security = 2.0.2
symantec / client_security = 2.0.2_build_9.0.2.1000-mr2
symantec / client_security = 2.0.3
symantec / client_security = 2.0.3_build_9.0.3.1000-mr3
symantec / client_security = 2.0_scf_7.1
symantec / client_security = 2.0_stm_build_9.0.0.338
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 = 9.0.1
symantec / norton_antivirus = 9.0.1.1.1000
symantec / norton_antivirus = 9.0.1.1000
symantec / norton_antivirus = 9.0.2
symantec / norton_antivirus = 9.0.2.1000

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.