CVE-2010-5158: Race condition in DefenseWall Personal Firewall 3.00 on Windows XP allows local users to bypass kernel-mode ho

Routine

MEDIUM 6.2DOWNGRADE

CVE-2010-5158 is a medium-severity flaw (CVSS 6.2) affecting defensewall personal firewall. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Race condition in DefenseWall Personal Firewall 3.00 on Windows XP allows local users to bypass kernel-mode hook handlers, and execute dangerous code that would otherwise be blocked by a handler but not blocked by signature-based malware detection, via certain user-space memory changes during hook-handler execution, aka an argument-switch attack or a KHOBE attack. NOTE: this issue is disputed by some third parties because it is a flaw in a prote

Why this priority

No elevated risk signals yet

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

Risk facts

CVSS score	6.2 (Medium)
EPSS exploit chance	0.3% (top 77%)
CISA exploited list	No
Weakness	CWE-362
Published	2012-08-25
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: softsphere

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

Am I affected?

Timeline

2012-08-25 21:55 UTCPublished CVE record published
2026-06-16 23:26 UTCUpdated Record last modified

softsphere defensewall personal firewall DOWNGRADE

Affected: 3.00

Fixed in: no fixed release known

Safe to downgrade to: a release before 3.00

1. Check installed version

apt-cache policy defensewall-personal-firewall || rpm -q defensewall-personal-firewall || defensewall-personal-firewall --version

2. No fixed release: DOWNGRADE to a release before 3.00 (Debian / Ubuntu)

apt-cache madison defensewall-personal-firewall sudo apt install defensewall-personal-firewall=<VERSION_BEFORE_3.00> sudo apt-mark hold defensewall-personal-firewall

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

dnf --showduplicates list defensewall-personal-firewall sudo dnf downgrade defensewall-personal-firewall-<VERSION_BEFORE_3.00> sudo dnf versionlock add defensewall-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.

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-2010-5158?

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

Is CVE-2010-5158 being exploited?

CVE-2010-5158 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-2010-5158 affect?

CVE-2010-5158 affects defensewall personal firewall. Severity is medium (CVSS 6.2). Race condition in DefenseWall Personal Firewall 3.00 on Windows XP allows local users to bypass kernel-mode hook handlers, and execute dangerous code that would otherwise be blocked by a handler but not blocked by signature-based malware de

How urgent is CVE-2010-5158?

Priority 27/100. No elevated risk signals yet.

Software pages

Windows vulnerabilities

Related CVEs

CVE-2015-1515 HIGH 7.2 DOWNGRADE The dwall.sys driver in SoftSphere DefenseWall Personal Firewall 3.24 allows local users to write data to arbi

References

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