CVE-1999-0751
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 overflow in Accept command in Netscape Enterprise Server 3.6 with the SSL Handshake Patch.
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 · low confidenceA buffer overflow vulnerability exists in the Accept command of Netscape Enterprise Server 3.6 when the SSL Handshake Patch is applied. The overflow occurs due to insufficient bounds checking on input received through the Accept command, potentially allowing an attacker to overwrite memory and execute arbitrary code.
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= 3.5.1= 3.6CVSS 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
- None
- Integrity
- None
- Availability
- Partial
AV:N/AC:L/Au:N/C:N/I:N/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 if Netscape Enterprise Server is runningCheck for running processes: look for 'netscapeenterprise' or 'nes' processes using commands like 'ps -ef | grep -i netscape' or 'tasklist' on Windows. Also check for listening ports (typically 80, 443) associated with Netscape.Affected if Netscape Enterprise Server process is running and bound to network ports
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Determine the installed versionCheck the version of Netscape Enterprise Server. Common locations: check the server's banner via 'telnet localhost 80' and send 'HEAD / HTTP/1.0' then press Enter twice. Also check installation directories for version files like 'version.txt' or examine the binary's properties.Affected if Version is 3.5.1 or 3.6 specifically
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Check if SSL Handshake Patch is appliedThis vulnerability ONLY affects systems WITH the SSL Handshake Patch installed. Check for patch files in the server's configuration or patch directory. Look for files named similarly to 'ssl handshake patch' or check patch log files in the Netscape installation directory.Affected if The SSL Handshake Patch for Netscape Enterprise Server is installed; without this patch the vulnerability does not exist
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Verify Accept command functionality is accessibleThe vulnerability exists in the Accept command. Check if remote administration or management interfaces exposing the Accept command are enabled. Look for configuration files controlling admin/management access (typically in the server's config directory).Affected if Remote access to the Accept command functionality is enabled and accessible over the network
User is affected if Netscape Enterprise Server version 3.5.1 or 3.6 is running WITH the SSL Handshake Patch installed and the Accept command interface is accessible.
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 dataOrganizations should upgrade from the obsolete Netscape Enterprise Server 3.6 to a supported web server solution, as patches for this 1999-era product are not available. If the system cannot be retired immediately, network segmentation and firewall rules should restrict access to the affected service.
- Consultation4.0 h
- Implementation8.0 h
- Testing4.0 h
- Review / QA2.0 h
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Free · runs locallyCheck whether your project pulls in CVE-1999-0751 — 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-1999-0751 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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