CVE-2002-0133
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 · uneditedBuffer overflows in Avirt Gateway Suite 4.2 allow remote attackers to cause a denial of service and possibly execute arbitrary code via (1) long header fields to the HTTP proxy, or (2) a long string to the telnet proxy.
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 · high confidenceAvirt Gateway Suite 4.2 contains buffer overflow vulnerabilities in both the HTTP proxy (via long header fields) and the telnet proxy (via long strings). Remote attackers can exploit these to cause denial of service or potentially execute arbitrary code with the privileges of the affected service.
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= 4.2= 4.2= 4.2CVSS 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
- Network
- Complexity
- Low
- Authentication
- None
- Confidentiality
- Partial
- Integrity
- Partial
- Availability
- Partial
AV:N/AC:L/Au:N/C:P/I:P/A:P
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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Identify installed Avirt productCheck system for Avirt Gateway Suite, Avirt Gateway, or Avirt Soho installation directories or installed programs. Look for program files associated with Avirt products.Affected if Avirt Gateway Suite, Gateway, or Soho version 4.2 is installed on the system
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Verify exact version numberLocate version information for the installed Avirt product (typically in program properties, about dialog, or version file within the installation directory).Affected if The installed version is exactly 4.2 (no other version numbers apply)
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Check if HTTP proxy service is enabledInspect the Avirt configuration to determine if the HTTP proxy service is active or configured to start. Look for HTTP proxy settings in the product configuration files or service manager.Affected if HTTP proxy service is enabled or running on the affected version 4.2 installation
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Check if telnet proxy service is enabledInspect the Avirt configuration to determine if the telnet proxy service is active or configured to start. Look for telnet proxy settings in the product configuration files or service manager.Affected if Telnet proxy service is enabled or running on the affected version 4.2 installation
A system is affected if Avirt Gateway Suite, Gateway, or Soho version 4.2 is installed AND either the HTTP proxy or telnet proxy service is enabled.
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 dataUpgrade to a patched version of Avirt Gateway Suite if available. If no patch exists, disable or restrict access to the HTTP and telnet proxy services, or consider replacing the product with a supported solution.
- Consultation2.0 h
- Implementation8.0 h
- Testing4.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2002-0133 — 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-2002-0133 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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A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.
- 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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