CVE-2023-32888Network attack vector

Remote service interruption via unchecked IMS call write

Published Jan 2, 2024 · Updated May 16, 2025

Out-of-bounds write in MediaTek Modem IMS Call UA NR15 through NR17 allows remote attackers to interrupt modem service. The call-handling component omits a bounds check before writing remote IMS call data, allowing the write to exceed its destination buffer. The request requires no privileges or user interaction; MediaTek does not state whether denial of service causes a modem crash, hang, or restart.

CVSS severity7.5
High
EPSS probability0.95%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds write in MediaTek Modem IMS Call UA NR15 through NR17 allows remote attackers to interrupt modem service. The call-handling component omits a bounds check before writing remote IMS call data, allowing the write to exceed its destination buffer. The request requires no privileges or user interaction; MediaTek does not state whether denial of service causes a modem crash, hang, or restart.

The record

CVE
CVE-2023-32888
Published
Jan 2, 2024
Updated
May 16, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-787, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 2, 2024CVE publishedPublication date reported by the CVE source.
  2. May 16, 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 buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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.

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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 exploitUnconfirmed

Weakness, pattern, technique

CWE-787Out-of-bounds Write
T1499.004Endpoint Denial of Service: Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

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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