CVE-2023-24503
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 · uneditedElectra Central AC unit – Adjacent attacker may cause the unit to load unauthorized FW.
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 confidenceAn adjacent (physically proximate) attacker can trigger the Electra Central AC unit to load unauthorized firmware, likely due to missing or inadequate firmware authentication/verification in the update mechanism.
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= osk201CVSS 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
- Adjacent
- Complexity
- Low
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- High
- Availability
- None
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
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 device modelLocate the model number on the AC unit or in the device documentation. Confirm it is an Electra Air Smart Kit For Split AC with model identifier osk201.Affected if The device is an Electra Air Smart Kit For Split AC model osk201.
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Check the installed firmware versionAccess the device settings through its mobile app, web interface, or control panel display. Navigate to the firmware or system information section to retrieve the current firmware version.Affected if The firmware version matches osk201, indicating it is the affected model.
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Inspect the firmware update configurationIn the device settings or mobile app, locate the firmware update or software update section. Check if automatic updates are enabled and note any security-related settings.Affected if Firmware update functionality is enabled and accessible without strong authentication.
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Verify firmware authentication settingsLook for any settings related to firmware verification, digital signature validation, or secure boot in the device administration panel or mobile app.Affected if No firmware authentication or signature verification setting is present or it is disabled.
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Assess network accessibility of the update interfaceCheck if the device update mechanism is reachable over local network (WiFi, Bluetooth) by reviewing network configuration settings or using network scanning tools.Affected if The device firmware update interface is exposed on an accessible network and does not require strong authentication.
You are affected if you have an Electra Air Smart Kit For Split AC model osk201 with its firmware update mechanism enabled and no firmware authentication verification in place.
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 dataImplement cryptographic firmware signing with secure boot verification to ensure only authenticated firmware runs; restrict the firmware update interface to prevent adjacent attackers from injecting malicious code.
- Consultation24.0 h
- Implementation80.0 h
- Testing40.0 h
- Review / QA16.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $44,928.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2023-24503 — 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-2023-24503 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
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