CVE-2023-32844Public exploit

Remote system crash via invalid CSI report configuration

Published Dec 4, 2023 · Updated Aug 2, 2024

Reachable assertion in MediaTek 5G Modem NR15, NR16, and NR17 allows remote attackers to crash systems with a malformed RRC message. RRC setup parsing accepts an invalid pucch CSIReportConfig element and reaches an assertion instead of rejecting the malformed configuration. Exploitation requires a target to connect to an attacker-controlled 5G base station; the resulting crash interrupts cellular service without reported data exposure or modification.

CVSS severity7.5
High
EPSS probability1.35%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Reachable assertion in MediaTek 5G Modem NR15, NR16, and NR17 allows remote attackers to crash systems with a malformed RRC message. RRC setup parsing accepts an invalid pucch CSIReportConfig element and reaches an assertion instead of rejecting the malformed configuration. Exploitation requires a target to connect to an attacker-controlled 5G base station; the resulting crash interrupts cellular service without reported data exposure or modification.

The record

CVE
CVE-2023-32844
Published
Dec 4, 2023
Updated
Aug 2, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-617, T1499.004
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 4, 2023CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectoradjacent
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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-617Reachable Assertion
T1499.004Application or System Exploitation

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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