CVE-2026-44407

Service interruption via externally controlled format string

Published May 7, 2026 · Updated May 7, 2026

Format-string injection in ZTE ZXCLOUD iRAI ClientV7.2X allows local users to corrupt memory and interrupt the uSmartView client. The CNA maps the flaw to an externally controlled format string, but ZTE has not disclosed the affected function, input, or memory operation. Exploitation requires a local low-privileged user and high complexity; successful exploitation interrupts service without reported confidentiality or integrity impact.

CVSS severity4.7
Medium
EPSS probability0.27%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Format-string injection in ZTE ZXCLOUD iRAI ClientV7.2X allows local users to corrupt memory and interrupt the uSmartView client. The CNA maps the flaw to an externally controlled format string, but ZTE has not disclosed the affected function, input, or memory operation. Exploitation requires a local low-privileged user and high complexity; successful exploitation interrupts service without reported confidentiality or integrity impact.

The record

CVE
CVE-2026-44407
Published
May 7, 2026
Updated
May 7, 2026
Vendor
ZTE Corporation
Product
ZXCLOUD iRAI
Classifications
CWE-134, CAPEC-135, T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. May 7, 2026CVE publishedPublication date reported by the CVE source.
  2. May 7, 2026Record 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=ZXCLOUD-iRAI-ClientV7.2X

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

ZTE Corporation · ZXCLOUD iRAIversion=ZXCLOUD-iRAI-ClientV7.2X

Published CVSS scores

7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
4.7ZTE CorporationCVSS:3.1/AV:L/AC:H/PR:L/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.

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)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-134Use of Externally-Controlled Format String
CAPEC-135Format String Injection
T1499.004Application 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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