CVE-2022-43762
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 · uneditedLack of verification in B&R APROL Tbase server versions < R 4.2-07 may lead to memory leaks when receiving messages
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 · moderate confidenceB&R APROL Tbase server versions prior to R 4.2-07 contain a vulnerability caused by insufficient input verification when processing received messages. This flaw can lead to memory leaks, potentially allowing remote attackers to cause denial of service or achieve remote code execution due to the memory corruption.
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< r4.2-07CVSS 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 installed APROL Tbase server versionLocate the B&R APROL Tbase server installation and retrieve its version information, typically found in the server's about dialog, installation directory metadata, or via command-line version query tool if availableAffected if The installed version is any release prior to R 4.2-07 (for example, R 4.2-06, R 4.2-05, or earlier)
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Confirm Tbase server is running and exposed to networkCheck if the Tbase server process is active and listening on network ports, as this is a remote attack vector requiring network accessibilityAffected if The Tbase server is running and accessible over the network on any port
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Verify message processing component is enabledInspect the Tbase server configuration to determine if the message reception and processing component is enabled and actively handling incoming messagesAffected if The message processing functionality is enabled and actively receiving or parsing messages from external sources
The environment is affected if the B&R APROL Tbase server version is older than R 4.2-07 AND the server is network-accessible with message processing enabled.
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.
dbcve · scopedUpgrade B&R APROL Tbase server to version R 4.2-07 or later to remediate the vulnerability.
R 4.2-07 or later
- Identify the current installed version of B&R APROL Tbase server
- Verify the current version is below R 4.2-07
- Contact B&R Automation to obtain the upgrade to version R 4.2-07 or later
- Plan upgrade during scheduled maintenance window following B&R's official upgrade procedures
- After upgrade, verify the Tbase server version is R 4.2-07 or higher
- Test that the Tbase server handles incoming messages without memory leaks
Generated from the published advisory — verify against the referenced sources before acting.
- 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-2022-43762 — 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-2022-43762 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