CVE-2024-45415Network attack vector

Root code execution via unchecked checksum copy

Published Sep 16, 2024 · Updated Sep 18, 2024

Stack-based buffer overflow in ZTE ZXHN router firmware allows remote attackers to execute code as root through an unauthenticated HTTP request. The HTTPD check_data_integrity function decrypts an attacker-controlled POST checksum and copies it into a stack buffer without validating its length. Network access to the router's HTTP server is sufficient; successful exploitation runs arbitrary code with root privileges.

CVSS severity9.8
Critical
EPSS probability0.48%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stack-based buffer overflow in ZTE ZXHN router firmware allows remote attackers to execute code as root through an unauthenticated HTTP request. The HTTPD check_data_integrity function decrypts an attacker-controlled POST checksum and copies it into a stack buffer without validating its length. Network access to the router's HTTP server is sufficient; successful exploitation runs arbitrary code with root privileges.

The record

CVE
CVE-2024-45415
Published
Sep 16, 2024
Updated
Sep 18, 2024
Vendor
ZTE Corporation
Product
ZXHN H108N Firmware
Classifications
CWE-121, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 16, 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=V2.6.20.ROST12

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

ZTE Corporation · ZXHN H108N Firmwareversion=V2.6.20.ROST12
ZTE Corporation · ZXHN Z500 Firmwareversion=V1.0.1.1B2.1000
ZTE Corporation · ZXHN E2603 Firmwareversion=V1.0.1
ZTE Corporation · ZXHN H168N Firmwareversion=V3.5.5_CO.1T1
ZTE Corporation · ZXHN E2615 Firmwareversion=V1.0.1
ZTE Corporation · ZXHN E500 Firmwareversion=V1.0.1.1B2.1000
ZTE Corporation · ZXHN E1600 Firmwareversion=V1.0.0.2B1.1000
ZTE Corporation · ZXHN H338A Firmwareversion=V1.5.0_H3A.1T9P1-o
ZTE Corporation · ZXHN E2618 Firmwareversion=V1.0.0.2B4.3000
ZTE Corporation · ZXHN H168A Firmwareversion=TTN.1T1_211029

Published CVSS scores

9.8CISA-ADPCVSS: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 exploitUnconfirmed

Weakness, pattern, technique

CWE-121Stack-based Buffer Overflow
T1190Exploit Public-Facing Application

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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