CVE-2024-39791
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 · uneditedStack-based buffer overflow vulnerabilities affecting Vonets industrial wifi bridge relays and wifi bridge repeaters, software versions 3.3.23.6.9 and prior, enable an unauthenticated remote attacker to execute arbitrary code.
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 confidenceStack-based buffer overflow vulnerabilities in Vonets industrial wifi bridge relays and repeaters (versions 3.3.23.6.9 and prior) allow unauthenticated remote attackers to achieve arbitrary code execution due to insufficient bounds checking when handling network input.
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<= 3.3.23.6.9<= 3.3.23.6.9<= 3.3.23.6.9<= 3.3.23.6.9<= 3.3.23.6.9<= 3.3.23.6.9<= 3.3.23.6.9<= 3.3.23.6.9CVSS 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 Vonets device on networkScan network for Vonets industrial wifi bridges or repeaters. Common model identifiers include Var1200, Var600, Vap11ac, Vap11g 500s, Vbg1200, Vap11s 5g, and Vap11s. Check device labels, DHCP lease tables, or network scans for these model names.Affected if Any Vonets Var1200 H, Var1200 L, Var600 H, Vap11ac, Vap11g 500s, Vbg1200, Vap11s 5g, or Vap11s device is present on the network
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Determine device firmware versionAccess the device web administration interface, or log in via SSH/Telnet if enabled. Navigate to the status or system information page to view the installed firmware version.Affected if Firmware version is 3.3.23.6.9 or any version prior to 3.3.23.6.9
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Assess network exposureReview firewall rules and network segmentation to determine if the Vonets device management interface or network services are reachable from untrusted networks. Check if the device has a public IP address or is accessible from the internet.Affected if The device is directly accessible from the internet or untrusted internal network segments without firewall filtering
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Check for unauthorized access indicatorsReview device logs for unusual authentication attempts, unexpected configuration changes, or processes consuming high resources which may indicate exploitation attempts.Affected if Logs show suspicious activity, unauthorized access attempts, or unexpected device behavior
If a Vonets device with firmware version 3.3.23.6.9 or earlier is present and its management interface is accessible from untrusted networks, the environment is likely affected by this vulnerability.
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 · scopedApply vendor firmware updates when available; until then, isolate affected devices behind firewalls or network segmentation to reduce attack surface, as the vulnerability is exploitable without authentication.
Latest available Vonets firmware > 3.3.23.6.9 (contact vendor for exact version)
- Contact Vonets vendor support to obtain the latest firmware version for your specific device model
- Download the firmware update from the official Vonets vendor website or support channel
- Review the firmware release notes to confirm the fix addresses CVE-2024-39791
- Follow the vendor's official firmware upgrade procedure for your device (typically via web UI or TFTP)
- After upgrading, verify the firmware version is greater than 3.3.23.6.9
- Confirm the device is functioning normally post-upgrade
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation8.0 h
- Implementation16.0 h
- Testing8.0 h
- Review / QA4.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2024-39791 — 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-2024-39791 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
- No spam, self-promotion, credentials, or personal data