CVE-2007-4968 — Privatefirewall 5.0.14.2 does not properly validate certain parameters to System Service Descriptor Table (SSDT) function handlers, which allows local users to cause a denial of service (crash) and possibly gain privileges via kernel SSDT hooks for (1) NtOpenProcess and (2) NtOpenThread

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MEDIUM

Privatefirewall 5.0.14.2 does not properly validate certain parameters to System Service Descriptor Table (SSDT) function handlers, which allows local users to cause a denial of service (crash) and possibly gain privileges via kernel SSDT hooks for (1) NtOpenProcess and (2) NtOpenThread

Published Sep 19, 2007

4.4

MEDIUM

CVSS 2.0

EPSS 0.28%

Description

Privatefirewall 5.0.14.2 does not properly validate certain parameters to System Service Descriptor Table (SSDT) function handlers, which allows local users to cause a denial of service (crash) and possibly gain privileges via kernel SSDT hooks for (1) NtOpenProcess and (2) NtOpenThread.

Affected products

Remediation

No remediation recorded yet.

Metrics

0.28% 0.00284

Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.

EPSS probability 0.00284

Score over time

2022–2026

EPSS v2
EPSS v3
EPSS v4
EPSS v5

Percentile over time

EPSS v2
EPSS v3
EPSS v4
EPSS v5

Table of values (9 key points)

Flat stretches are collapsed; showing up to 120 newest points.

Date	Score	Percentile	Model
Oct 1, 2026	0.28% (0.00284)	18.92th	v5 (v2026.06.15)
Jun 15, 2026	0.28% (0.00284)	19.93th	v5 (v2026.06.15)
Mar 17, 2025	0.07% (0.00071)	19.18th	v4 (v2025.03.14)
Dec 12, 2024	0.04% (0.00042)	5.07th	v3 (v2023.03.01)
Mar 7, 2023	0.04% (0.00042)	5.63th	v3 (v2023.03.01)
Mar 6, 2023	0.95% (0.00950)	32.28th	v2 (v2022.01.01)
Sep 10, 2022	0.95% (0.00950)	30.63th	v2 (v2022.01.01)
Apr 1, 2022	0.95% (0.00950)	28.61th	v2 (v2022.01.01)
Feb 4, 2022	0.95% (0.00950)	13.46th	v2 (v2022.01.01)

Weaknesses (1)

CWE-20

Improper Input Validation

References (5)

http://osvdb.org/45952
vdb-entryx_refsource_OSVDB
http://www.matousec.com/info/advisories/plague-in-security-software-drivers.php
x_refsource_MISC
http://www.matousec.com/projects/windows-personal-firewall-analysis/plague-in-security-software-drivers.php
x_refsource_MISC
http://www.securityfocus.com/archive/1/479830/100/0/threaded
mailing-listx_refsource_BUGTRAQ
http://www.securityfocus.com/bid/25712
vdb-entryx_refsource_BID

Link	Providers	Tags
http://osvdb.org/45952		vdb-entryx_refsource_OSVDB
http://www.matousec.com/info/advisories/plague-in-security-software-drivers.php		x_refsource_MISC
http://www.matousec.com/projects/windows-personal-firewall-analysis/plague-in-security-software-drivers.php		x_refsource_MISC
http://www.securityfocus.com/archive/1/479830/100/0/threaded		mailing-listx_refsource_BUGTRAQ
http://www.securityfocus.com/bid/25712		vdb-entryx_refsource_BID

Change history (0)

No recorded changes yet.

Sources

CVE.org / MITRE

Status PUBLISHED

Assigner mitre

Published Sep 19, 2007

Updated Aug 7, 2024

Reserved Sep 18, 2007

Link CVE-2007-4968

CISA Vulnrichment

Updated n/a

NVD

Status Modified

Modified Jun 16, 2026

Link CVE-2007-4968

Red Hat

Severity n/a

Public date n/a

Links CVE-2007-4968