CVE-2022-39068

Service interruption via oversized SMS parameter

Published Sep 18, 2024 · Updated Sep 18, 2024

Heap-based buffer overflow in ZTE MF296R MF296R_Nordic1_B06 allows remote authenticated users to interrupt service via an SMS parameter. The SMS-processing path insufficiently validates the parameter length before writing its contents into a heap buffer. Exploitation requires authenticated, high-privilege access from an adjacent network and has no reported effect beyond availability.

CVSS severity6.5
Medium
EPSS probability0.40%
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 ZTE MF296R MF296R_Nordic1_B06 allows remote authenticated users to interrupt service via an SMS parameter. The SMS-processing path insufficiently validates the parameter length before writing its contents into a heap buffer. Exploitation requires authenticated, high-privilege access from an adjacent network and has no reported effect beyond availability.

The record

CVE
CVE-2022-39068
Published
Sep 18, 2024
Updated
Sep 18, 2024
Vendor
ZTE Corporation
Product
MF296R
Classifications
CWE-122, CWE-787, T1499
Attack vector
adjacent
Privileges
admin

Timeline

How it unfolded

  1. Sep 18, 2024CVE publishedPublication date reported by the CVE source.
  2. Sep 18, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=MF296R_Nordic1_B06

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesadmin

What is affected?

ZTE Corporation · MF296Rversion=MF296R_Nordic1_B06

Published CVSS scores

6.5NISTCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
4.5ZTE CorporationCVSS:3.1/AV:A/AC:L/PR:H/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)
Vectoradjacent
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-122Heap-based Buffer Overflow
CWE-787Out-of-bounds Write
T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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