CVE-2018-18327
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 · uneditedA KERedirect Untrusted Pointer Dereference Privilege Escalation vulnerability in Trend Micro Antivirus for Mac (Consumer) 7.0 (2017) and above could allow a local attacker to escalate privileges on vulnerable installations. The issue results from the lack of proper validation function on 0x6eDC offset user-supplied buffer. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.
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 confidenceA local privilege escalation vulnerability in Trend Micro Antivirus for Mac's kernel extension (KERedirect) stems from improper validation of user-supplied data at the 0x6eDC buffer offset, allowing an attacker with low-privileged code execution to gain elevated (kernel-level) privileges.
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>= 7.0, <= 7.1.1124>= 8.0, <= 8.0.3082>= 9.0, <= 9.0.1356CVSS 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
- Local
- Complexity
- Low
- Privileges
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.0/AV:L/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 Trend Micro Antivirus for Mac versionRun 'ls /Applications/' and look for Trend Micro security software, then check the app's version via Finder Get Info or by running 'pkgutil --pkg-info=com.trendmicro.*' if availableAffected if The installed version falls within 7.0 to 7.1.1124, 8.0 to 8.0.3082, or 9.0 to 9.0.1356
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Verify KERedirect kernel extension is loadedRun 'kextstat | grep -i KERedirect' in TerminalAffected if The KERedirect kernel extension appears in the loaded kernel extensions list, indicating the vulnerable component is active
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Confirm the product is a supported vulnerable versionCompare your installed product year (2017, 2018, or 2019) and exact version number against the affected ranges: 7.0-7.1.1124, 8.0-8.0.3082, or 9.0-9.0.1356Affected if The installed version matches any of the three affected version ranges and the KERedirect kext is loaded
You are affected if Trend Micro Antivirus for Mac is installed with a version between 7.0 and 7.1.1124, 8.0 and 8.0.3082, or 9.0 and 9.0.1356, and the KERedirect kernel extension is currently loaded in memory.
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 patches for Trend Micro Antivirus for Mac 7.0 and above; until patched, minimize exposure by restricting local code execution and monitoring for suspicious kernel-level activity.
- Consultation2.0 h
- Implementation1.0 h
- Testing2.0 h
- Review / QA1.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2018-18327 — 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-2018-18327 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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- Version or environment caveats, and links to real fixes
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