CVE-2024-13943
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 · uneditedTesla Model S Iris Modem QCMAP_ConnectionManager Improper Input Validation Sandbox Escape Vulnerability. This vulnerability allows local attackers to escape the sandbox on affected affected Tesla Model S vehicles. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the QCMAP_ConnectionManager component. An attacker can abuse the service to assign LAN addresses to the WWAN. An attacker can leverage this vulnerability to access network services that were only intended to be exposed to the internal LAN. Was ZDI-CAN-23199.
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 confidenceThis vulnerability in the Tesla Model S Iris Modem's QCMAP_ConnectionManager component allows a local attacker with low-privileged code execution to escape the sandbox by abusing improper input validation. The flaw enables assignment of LAN addresses to the WWAN interface, exposing internal-only network services to external interfaces.
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< 2024.8CVSS 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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Check Tesla Model S firmware versionAccess the vehicle's 'Software' menu via the touchscreen or check in the Tesla mobile app under 'Vehicle Details' to view the current firmware versionAffected if The installed firmware version is earlier than 2024.8 (e.g., 2024.6, 2024.4, etc.)
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Verify QCMAP_ConnectionManager network configurationThis requires diagnostic access to the Iris modem component. Using appropriate vehicle diagnostic tools or authorized service interfaces, inspect the QCMAP_ConnectionManager configuration for WWAN interface settingsAffected if The WWAN interface has been assigned a LAN-side IP address (typically 192.168.x.x, 10.x.x.x, or 172.16-31.x.x ranges)
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Inspect exposed network servicesUsing network scanning tools from an external interface (e.g., cellular connection), enumerate services listening on the WWAN or external-facing interfacesAffected if Services that should only be accessible internally (e.g., internal HTTP servers, diagnostic ports) are reachable from the external/WWAN interface
A Tesla Model S owner is affected if their vehicle firmware is older than version 2024.8 and the QCMAP_ConnectionManager misconfiguration allows internal network services to be exposed externally.
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 data2024.8
Tesla should release a firmware update that implements proper input validation in QCMAP_ConnectionManager to prevent LAN address assignment to WWAN, and enforce stricter sandboxing of the modem component.
- Consultation6.0 h
- Implementation16.0 h
- Testing12.0 h
- Review / QA8.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2024-13943 — 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-2024-13943 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
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- Version or environment caveats, and links to real fixes
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