CVE-2018-4923
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 · uneditedAdobe Connect versions 9.7 and earlier have an exploitable OS Command Injection. Successful exploitation could lead to arbitrary file deletion.
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 confidenceAdobe Connect versions 9.7 and earlier contain an OS Command Injection vulnerability that allows authenticated attackers to execute arbitrary system commands through unsanitized input, specifically leading to arbitrary file deletion on the host system.
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<= 9.7CVSS 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
- None
- Integrity
- High
- Availability
- High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/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 the installed Adobe Connect versionLocate the Adobe Connect version information through the admin interface or system-installed program details, then compare it against the affected version range (9.7 and earlier)Affected if The installed version is 9.7 or any earlier version (9.0 through 9.7)
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Determine if the Adobe Connect web interface is publicly accessibleCheck network accessibility of the Adobe Connect login and admin portals from untrusted networksAffected if The interface is exposed to the internet or untrusted users without proper network segmentation
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Assess the authentication attack surfaceReview whether user accounts with access to Adobe Connect are limited to trusted internal users onlyAffected if Untrusted or guest users have accounts that can log into the system
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Review server logs for command injection indicatorsExamine Adobe Connect server logs and system audit logs for suspicious command execution patterns or unexpected system callsAffected if Logs show unexpected command execution or privilege escalation attempts
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Check for unauthorized file deletion activityReview system and application logs for unexpected file removal or deletion operations targeting system filesAffected if Evidence exists of arbitrary file deletion that was not performed by legitimate administrators
You are affected if your installed Adobe Connect version is 9.7 or earlier and the application is accessible to untrusted authenticated users.
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 Adobe Connect to version 9.8 or later. If immediate patching is not possible, implement Web Application Firewall (WAF) rules to detect and block command injection patterns in request parameters.
- Consultation6.0 h
- Implementation12.0 h
- Testing8.0 h
- Review / QA4.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $8,448.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2018-4923 — 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-2018-4923 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