CVE-2016-10810
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 · uneditedIn cPanel before 57.9999.54, /scripts/maildir_converter exposed a TTY to an unprivileged process (SEC-115).
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 confidenceIn cPanel before version 57.9999.54, the /scripts/maildir_converter script exposed a TTY (terminal) to an unprivileged process (SEC-115). This allows an unprivileged local attacker to potentially interact with or hijack a privileged process's terminal session, which could lead to privilege escalation or injection of commands into privileged contexts.
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>= 11.50.0.4, < 11.50.6.2>= 11.51.9999.98, < 11.52.6.1>= 11.54.0.0, < 11.54.0.24>= 55.9999.61, < 56.0.15>= 57.9999.48, < 57.9999.54CVSS 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
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.0/AV:N/AC:L/PR:L/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 installed cPanel versionRun the command: /usr/local/cpanel/cpanel -V or check /var/cpanel/versionAffected if The version output falls within any of these ranges: 11.50.0.4 to 11.50.6.2, 11.51.9999.98 to 11.52.6.1, 11.54.0.0 to 11.54.0.24, 55.9999.61 to 56.0.15, or 57.9999.48 to 57.9999.53
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Verify maildir_converter script existsCheck if /scripts/maildir_converter exists on the system using: ls -la /scripts/maildir_converterAffected if The script exists and the cPanel version is in any of the affected ranges listed above
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Confirm TTY exposure conditionReview the /scripts/maildir_converter script content or behavior to verify if it exposes a TTY to unprivileged processes. This may require examining script execution and checking for improper TTY handling.Affected if The script is present and permits unprivileged process access to a privileged terminal session, combined with being on an affected cPanel version
If the installed cPanel version falls within any of the five affected version ranges (11.50.0.4-11.50.6.2, 11.51.9999.98-11.52.6.1, 11.54.0.0-11.54.0.24, 55.9999.61-56.0.15, or 57.9999.48-57.9999.53), the system is vulnerable to TTY exposure via the maildir_converter script.
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 data11.50.6.211.52.6.111.54.0.24
Upgrade cPanel to version 57.9999.54 or later to obtain the patch that prevents TTY exposure in the maildir_converter script. Verify the upgrade in a staging environment before production deployment.
- Consultation3.0 h
- Implementation6.0 h
- Testing8.0 h
- Review / QA3.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2016-10810 — 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-2016-10810 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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