CVE-2026-6350
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 · uneditedMailGates/MailAudit developed by Openfind has a Stack-based Buffer Overflow vulnerability, allowing unauthenticated remote attackers to control the program's execution flow and execute arbitrary code.
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 confidenceMailGates/MailAudit by Openfind contains a stack-based buffer overflow vulnerability that allows unauthenticated remote attackers to overwrite stack memory, hijack execution flow, and achieve arbitrary code execution due to insufficient bounds checking on user-controlled input.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
CVSS 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
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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 MailGates or MailAudit installationLocate Openfind MailGates or MailAudit binaries, services, or installation directories on the system. Common locations include /opt/openfind, /usr/local/openfind, or check running services for mail gateway processes.Affected if MailGates or MailAudit software is found installed on the system
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Determine the installed versionRun version check command for the MailGates/MailAudit installation, such as 'mailgates -v', 'mailaudit -v', or inspect version information in installation files or the product about page.Affected if The installed version cannot be determined or is not explicitly listed as patched by the vendor
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Verify network exposure of mail gateway serviceCheck if the mail gateway service port (typically SMTP ports 25, 465, 587, or custom ports configured for MailGates) is listening on external network interfaces. Use 'netstat -tulpn' or 'ss -tulpn' to review listening services.Affected if The mail gateway service is listening on publicly accessible network interfaces without adequate firewall restrictions
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Inspect for indicators of compromiseReview mail server and system logs for unexpected processes, unusual authentication attempts, or signs of remote code execution. Check for new or unexpected user accounts, scheduled tasks, or reverse shell connections.Affected if Log analysis reveals suspicious activity consistent with remote code execution or unauthorized access
If Openfind MailGates or MailAudit is installed and the gateway service is network-accessible, the environment is likely affected by this vulnerability.
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 dataApply vendor-provided security patches or updates from Openfind immediately; if patches are unavailable, isolate the affected systems from untrusted networks and implement WAF/IPS rules to detect and block exploitation attempts.
- Consultation4.0 h
- Implementation6.0 h
- Testing4.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $4,544.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-6350 — 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-2026-6350 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
- No spam, self-promotion, credentials, or personal data