CVE-2023-47610Public exploitNetwork attack vector

Unauthenticated code execution via WAP SMS overflow

Published Nov 9, 2023 · Updated Feb 27, 2025

Heap-based buffer overflow in all versions of Telit Cinterion EHS5, EHS6, and EHS8 allows remote attackers to execute code via crafted SMS messages. The WAP SMS fragmentation driver allocates a heap buffer from ULPSizeFromPacket but copies fragments sized by independently calculated wapTpduLen values without checking their cumulative length. No authentication or user interaction is required; corrupting the shared modem heap permits attacker-controlled memory writes and code execution in the modem OS.

CVSS severity8.1
High
EPSS probability1.69%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Heap-based buffer overflow in all versions of Telit Cinterion EHS5, EHS6, and EHS8 allows remote attackers to execute code via crafted SMS messages. The WAP SMS fragmentation driver allocates a heap buffer from ULPSizeFromPacket but copies fragments sized by independently calculated wapTpduLen values without checking their cumulative length. No authentication or user interaction is required; corrupting the shared modem heap permits attacker-controlled memory writes and code execution in the modem OS.

The record

CVE
CVE-2023-47610
Published
Nov 9, 2023
Updated
Feb 27, 2025
Vendor
Telit Cinterion
Product
EHS8
Classifications
CWE-120, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 9, 2023CVE publishedPublication date reported by the CVE source.
  2. Feb 27, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected versions are unavailable in this record. Check the vendor advisory for version and patch details.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Telit Cinterion · EHS8Affected versions are unavailable in this record.
Telit Cinterion · EHS6Affected versions are unavailable in this record.
Telit Cinterion · EHS5Affected versions are unavailable in this record.

Published CVSS scores

8.1Kaspersky LabsCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
9.8NISTCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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