CVE-2010-5164
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedRace condition in KingSoft Personal Firewall 9 Plus 2009.05.07.70 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 protection mechanism for situations where a crafted program has already begun to execute
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · moderate confidenceA race condition in KingSoft Personal Firewall 9 Plus allows local users to bypass kernel-mode hook handlers by modifying user-space memory during the brief window when hook handlers are executing. This 'argument-switch' or 'KHOBE' attack exploits timing to evade the firewall's signature-based detection while executing code that would normally be blocked.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data= 2009.05.07.70CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Local
- Complexity
- Low
- Privileges
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- Low
- Integrity
- Low
- Availability
- Low
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Verify KingSoft Personal Firewall 9 Plus installationCheck your system for the presence of KingSoft Personal Firewall 9 Plus by looking in Add/Remove Programs (Windows XP) or Programs and Features (later Windows versions), or search for the program in your installed applications.Affected if The application is listed as installed on the system
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Identify the installed version numberRight-click on the KingSoft Personal Firewall icon in the system tray or access the program's About/Help section to view the version information. Alternatively, check the program's executable properties by locating the main executable file.Affected if The displayed version matches 2009.05.07.70 exactly
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Confirm the specific build variantVerify whether the installed version is specifically 'KingSoft Personal Firewall 9 Plus' as the vulnerability affects the Plus variant.Affected if The program is the Plus variant of version 2009.05.07.70
You are affected if KingSoft Personal Firewall 9 Plus version 2009.05.07.70 is installed on your system.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
From vendor dataReplace KingSoft Personal Firewall 9 Plus with a current, actively-maintained firewall solution; consider upgrading from Windows XP to a supported operating system as the underlying platform is obsolete.
- Consultation2.0 h
- Implementation4.0 h
- Testing2.0 h
- Review / QA1.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $2,560.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2010-5164 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2010-5164 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
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