CVE-2009-4114

Exp

kl1.sys in Kaspersky Anti-Virus 2010 9.0.0.463, and possibly other versions before 9.0.0.736, does not properly validate input to IOCTL 0x0022c008, which allows local users to cause a denial of service (system crash) via IOCTL requests using crafted kernel addresses that trigger memory corruption, possibly related to klavemu.kdl.

Published: 2009-11-30 Last update: 2026-04-23 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2009-4114 is rated Exploit Available (53.2/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 0.83%). 4 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-2009-4114

EDB-ID Source Kind Published Link
10164 exploit_db edb 2009-09-29 Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2009-4114

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 0.65% 0.83% +0.19%
2 2026-03-21 0.39% 0.65% +0.26%
3 2025-03-19 — 0.39% —

Full EPSS history (6 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2009-4114

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
4.9 2.0 MEDIUM
AV:L/AC:L/Au:N/C:N/I:N/A:C 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:C)
Complete availability impact.
 3.9 6.9 [email protected]

Weakness enumeration for CVE-2009-4114

Affected software / configurations for CVE-2009-4114

Vendor Product Version Raw CPE
kaspersky kaspersky_anti-virus 9.0.0.463 cpe:2.3:a:kaspersky:kaspersky_anti-virus:9.0.0.463:*:*:*:*:*:*:*

References for CVE-2009-4114

cvelogic Threat Intelligence