HOMEVULNERABILITIESCVE-2009-4114
MEDIUMPOC

CVE-2009-4114

CWE-20Published: November 30, 2009· Updated: Jun 16, 2026

4.9
CVSS v3.1

Official Description

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.

NVD Source

Technical Analysis

CVE-2009-4114 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A proof-of-concept (PoC) exploit exists for CVE-2009-4114. While not yet confirmed in active campaigns, the availability of PoC code increases exploitation risk substantially.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges Req.
User Interaction
Scope
Impact
ConfidentialityNone
IntegrityNone
AvailabilityC
AV:L/AC:L/Au:N/C:N/I:N/A:C

Affected Vendors & Products

kaspersky1 product(s)
kaspersky anti-virus
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

POC AVAILABLEProof-of-concept code exists
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttp://secunia.com/advisories/37398
ADVISORYhttp://www.vupen.com/english/advisories/2009/3286
ADVISORYhttp://secunia.com/advisories/37398
ADVISORYhttp://www.vupen.com/english/advisories/2009/3286

All References (16)

→
http://osvdb.org/60207
→
http://secunia.com/advisories/37398Vendor Advisory
→
http://sysdream.com/article.php?story_id=323&section_id=78Exploit
→
http://www.securityfocus.com/archive/1/507933/100/0/threaded
→
http://www.securityfocus.com/bid/37044Exploit
→
http://www.securitytracker.com/id?1023198Exploit
→
http://www.vupen.com/english/advisories/2009/3286Vendor Advisory
→
https://exchange.xforce.ibmcloud.com/vulnerabilities/54309
→
http://osvdb.org/60207
→
http://secunia.com/advisories/37398Vendor Advisory
→
http://sysdream.com/article.php?story_id=323&section_id=78Exploit
→
http://www.securityfocus.com/archive/1/507933/100/0/threaded
→
http://www.securityfocus.com/bid/37044Exploit
→
http://www.securitytracker.com/id?1023198Exploit
→
http://www.vupen.com/english/advisories/2009/3286Vendor Advisory

Quick Facts

CVE IDCVE-2009-4114
CVSS Score4.9 / 10
SeverityMEDIUM
WeaknessCWE-20
CISA KEVNo
ExploitPOC
Affected1 vendor(s)
PublishedNov 30, 2009

Related CVEs (CWE-20)

CVE-2026-0848
10.0
CVE-2026-12537
10.0
CVE-2009-1300
10.0
CVE-2026-48055
10.0
CVE-2026-34910
KEV10.0
CVE-2011-4755
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2009-4114 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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