CVE-2022-24671
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 link following privilege escalation vulnerability in Trend Micro Antivirus for Max 11.0.2150 and below could allow a local attacker to modify a file during the update process and escalate their privileges. Please note: 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 time-of-check-to-time-of-use (TOCTOU) vulnerability exists in Trend Micro Antivirus for Mac 11.0.2150 and below where the update process follows symbolic links, allowing a local attacker with low-privileged code execution to manipulate file placement during updates and escalate to elevated 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<= 11.0.2150CVSS 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:3.1/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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Check if Trend Micro Antivirus for Mac is installedOpen Terminal and run: ls /Applications | grep -i trendmicro OR check /Library/Application Support/TrendMicro for presence of the productAffected if Trend Micro Antivirus for Mac is not found in the system, the vulnerability does not apply
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Determine installed version of Trend Micro Antivirus for MacOpen Terminal and run: defaults read /Applications/TrendMicroSecurityAgent.app/Contents/Info CFBundleVersion 2>/dev/null OR right-click the app in Applications, select Get Info, and check the Version fieldAffected if Version is 11.0.2150 or lower (any version up to and including 11.0.2150)
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Verify if the update service component is enabledOpen Terminal and run: launchctl list | grep -i trend OR check System Preferences > Users & Groups > Login Items for Trend Micro updater componentsAffected if The Trend Micro update service (TmUpdate or similar) is listed as running or enabled
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Check for symbolic links in the update directoryRun: ls -la /Library/Application\ Support/TrendMicro/TmUpdate/ 2>/dev/null to examine the update folder for any symbolic links that could be exploitedAffected if Symlinks exist in the update directory and the installed version is 11.0.2150 or below
A system is affected if Trend Micro Antivirus for Mac version 11.0.2150 or lower is installed and the update service component is present and enabled on the system.
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 dataUpdate Trend Micro Antivirus for Mac to a version above 11.0.2150 which contains the vendor fix for proper symlink validation during the update process.
- Consultation2.0 h
- Implementation1.0 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 $2,464.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2022-24671 — 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-2022-24671 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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