CVE-2009-2918

Exp

The tgbvpn.sys driver in TheGreenBow IPSec VPN Client 4.61.003 allows local users to cause a denial of service (NULL pointer dereference and system crash) via a crafted request to the 0x80000034 IOCTL, probably involving an input or output buffer size of 0.

Published: 2009-08-21 Last update: 2026-04-23 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2009-2918 is rated Exploit Available (50/100): CVSS Low severity, with medium exploitation likelihood (EPSS 0.85%). 2 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2009-2918

EDB-ID Source Kind Published Link
9449 exploit_db edb 2009-08-18 Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2009-2918

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.13% 0.85% +0.73%
2 2026-03-09 0.16% 0.13% -0.03%
3 2025-03-17 — 0.16% —

Full EPSS history (5 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2009-2918

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
2.1 2.0 LOW
AV:L/AC:L/Au:N/C:N/I:N/A:P Click to expand
Access vector (AV:L)
Requires local access to the target system.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
 3.9 2.9 [email protected]

Weakness enumeration for CVE-2009-2918

Affected software / configurations for CVE-2009-2918

Vendor Product Version Raw CPE
thegreenbow thegreenbow_vpn_client 4.61.003 cpe:2.3:a:thegreenbow:thegreenbow_vpn_client:4.61.003:*:*:*:*:*:*:*

References for CVE-2009-2918

cvelogic Threat Intelligence