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K7Firewall Packet Driver CVE-2014-7136

HIGH
Buffer Overflow (CWE-119)
2014-12-12 cve@mitre.org
7.2
CVSS 2.0 · NVD
View

Vulnerability Assessment

Weakness
CWE
ASVS 5.0
V15 - Secure Coding and Architecture Bounds checking, buffer size validation
MITRE ATT&CK

2 techniques across 2 tactics: Execution, Privilege Escalation

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Impact

CVSS score of 7.2 (HIGH). Attack characteristics: local attack vector, low complexity. Public proof-of-concept exploit code is available. EPSS exploitation probability: 0.11%.

Exploit ScenarioDerived

A local attacker with access to the system could corrupt memory to execute arbitrary code or crash the application.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
No patch listed yet 0.1% exploitation probability (EPSS)

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AnalysisAI

Heap-based buffer overflow in the K7FWFilt.sys kernel mode driver (aka K7Firewall Packet Driver) before 14.0.1.16, as used in multiple K7 Computing products, allows local users to execute arbitrary. Rated high severity (CVSS 7.2), this vulnerability is low attack complexity. Public exploit code available and no vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Use memory-safe languages or bounds-checking. Enable ASLR, DEP/NX, stack canaries. Use safe string functions.

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

This vulnerability is classified as Buffer Overflow (CWE-119), which allows attackers to corrupt memory to execute arbitrary code or crash the application. Heap-based buffer overflow in the K7FWFilt.sys kernel mode driver (aka K7Firewall Packet Driver) before 14.0.1.16, as used in multiple K7 Computing products, allows local users to execute arbitrary code with kernel privileges via a crafted parameter in a DeviceIoControl API call. Affected products include: K7Computing K7Firewall Packet Driver. Version information: before 14.0.1.16.

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 7.2 HIGH
AV:L/AC:L/Au:N/C:C/I:C/A:C

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Local
Attack Complexity
Low
Confidentiality
C
Integrity
C
Availability
C

DescriptionCVE.org

Heap-based buffer overflow in the K7FWFilt.sys kernel mode driver (aka K7Firewall Packet Driver) before 14.0.1.16, as used in multiple K7 Computing products, allows local users to execute arbitrary code with kernel privileges via a crafted parameter in a DeviceIoControl API call.

Threat Intelligence Overview

EPSS Score
0.1%
Top 70% exploitable
Exploit
POC
Public exploit code exists
Data Quality
3 sources
Confidence: Low

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity HIGH
CISA KEV No
Public POC Yes
EPSS 0.1%
Patch available No
Active threat No
Deciding rule
HIGH severity (CVSS 7.0-8.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation· derived
Poc
System Exposure· derived
Small
Automatable· derived
No
Human Impact· derived
Medium

Priority Score

56
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +36
PoC: +20
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

A buffer overflow occurs when a program writes more data to a memory buffer than it was allocated to hold, causing the excess data to spill into adjacent memory regions.

Remote Code Execution represents the critical moment when an attacker successfully runs arbitrary code on a target system without physical access.

Affected Products (CPE)CVE.org

cpe:2.3:a:k7computing:k7firewall_packet_driver:*:*:*:*:*:*:*:*

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