CVE-2007-0081: Sunbelt Kerio Personal Firewall (SKPF) 4.3.268 and 4.3.246, and possibly other versions allows local users to

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MEDIUM 6.8DOWNGRADE

CVE-2007-0081 is a medium-severity flaw (CVSS 6.8) affecting sunbelt kerio personal firewall. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Sunbelt Kerio Personal Firewall (SKPF) 4.3.268 and 4.3.246, and possibly other versions allows local users to provide a Trojan horse iphlpapi.dll to SKPF by placing it in the installation directory.

Why this priority

Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	6.8 (Medium)
EPSS exploit chance	0.7% (top 48%)
CISA exploited list	No
Published	2007-01-05
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: sunbelt

Last updated 2026-06-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2007-01-05 11:28 UTCPublished CVE record published
2026-06-16 22:34 UTCUpdated Record last modified

sunbelt sunbelt kerio personal firewall DOWNGRADE

Affected: 4.3.246 · 4.3.268

Fixed in: no fixed release known

Safe to downgrade to: a release before 4.3.246

1. Check installed version

apt-cache policy sunbelt-kerio-personal-firewall || rpm -q sunbelt-kerio-personal-firewall || sunbelt-kerio-personal-firewall --version

2. No fixed release: DOWNGRADE to a release before 4.3.246 (Debian / Ubuntu)

apt-cache madison sunbelt-kerio-personal-firewall sudo apt install sunbelt-kerio-personal-firewall=<VERSION_BEFORE_4.3.246> sudo apt-mark hold sunbelt-kerio-personal-firewall

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list sunbelt-kerio-personal-firewall sudo dnf downgrade sunbelt-kerio-personal-firewall-<VERSION_BEFORE_4.3.246> sudo dnf versionlock add sunbelt-kerio-personal-firewall

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Exploit-DB: Kerio Personal Firewall 4.3 - 'IPHLPAPI.dll' Local Privilege Escalation

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2007-0081?

sunbelt kerio personal firewall: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2007-0081 being exploited?

CVE-2007-0081 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2007-0081 affect?

CVE-2007-0081 affects sunbelt kerio personal firewall. Severity is medium (CVSS 6.8). Sunbelt Kerio Personal Firewall (SKPF) 4.3.268 and 4.3.246, and possibly other versions allows local users to provide a Trojan horse iphlpapi.dll to SKPF by placing it in the installation directory.

How urgent is CVE-2007-0081?

Priority 42/100. Public exploit reference

References

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