CVE-2023-47610
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 CWE-120: Buffer Copy without Checking Size of Input vulnerability exists in Telit Cinterion EHS5/6/8 that could allow a remote unauthenticated attacker to execute arbitrary code on the targeted system by sending a specially crafted SMS message.
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 confidenceA buffer overflow vulnerability (CWE-120) in Telit Cinterion EHS5/6/8 cellular IoT modems allows remote unauthenticated attackers to achieve arbitrary code execution via specially crafted SMS messages. The vulnerability stems from insufficient bounds checking when parsing incoming SMS data, enabling an attacker to overflow a buffer and inject malicious code without authentication.
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 dataall versionsall versionsall versionsall versionsall versionsall versionsall versionsall versionsCVSS 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 Telit modem models in your environmentReview device inventories, hardware asset lists, or network documentation to locate any Telit Cinterion cellular IoT modems. Check for model numbers Bgs5, Ehs5, Ehs6, Ehs8, Pds5, Pds6, Pds8, or Els61.Affected if Any of these eight model numbers are present in your environment, as all firmware versions are affected.
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Confirm SMS functionality is enabled on affected modemsAccess the modem's AT command interface or management interface and check SMS-related AT commands such as AT+CNMI (New Message Indications) or AT+CSMS (Message Service). A configuration that processes incoming SMS messages indicates SMS is enabled.Affected if SMS message processing is enabled on the device, as the buffer overflow occurs during SMS parsing.
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Check modem's SMS receiving configurationQuery the modem using AT+CNMI to see how incoming SMS messages are handled. Look for settings that direct SMS to memory (such as AT+CNMI=1,1 or similar) which indicates active SMS processing.Affected if The modem is configured to receive and store SMS messages, making it vulnerable to specially crafted SMS attacks.
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Assess network exposure to external SMS trafficReview network architecture to determine if the cellular interface can receive SMS from external sources. Check if SMS traffic is filtered, blocked, or segmented from untrusted networks.Affected if The modem's cellular interface can receive SMS messages from external/untrusted sources without filtering.
You are affected if any Telit Bgs5, Ehs5, Ehs6, Ehs8, Pds5, Pds6, Pds8, or Els61 modems in your environment have SMS processing enabled and can receive external SMS traffic.
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 dataApply vendor-supplied firmware patches for the EHS5/6/8 devices; until patches are available, consider network segmentation to restrict SMS traffic or disable SMS processing if not required for the device's function.
- Consultation8.0 h
- Implementation16.0 h
- Testing12.0 h
- Review / QA4.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2023-47610 — 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-2023-47610 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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