CVE-2023-49254Network attack vector

Root command execution via unsanitized destination parameter

Published Jan 12, 2024 · Updated Jun 20, 2025

OS command injection in Hongdian H8951-4G-ESP firmware before 2310271149 allows remote authenticated users to execute commands as root. The network-test backend trusts the destination field and relies on a client-side JavaScript blacklist, so direct POST requests deliver shell syntax unchecked. Any low-privileged authenticated account can bypass the interface filter and gain root-level control of the router.

CVSS severity8.8
High
EPSS probability0.73%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

OS command injection in Hongdian H8951-4G-ESP firmware before 2310271149 allows remote authenticated users to execute commands as root. The network-test backend trusts the destination field and relies on a client-side JavaScript blacklist, so direct POST requests deliver shell syntax unchecked. Any low-privileged authenticated account can bypass the interface filter and gain root-level control of the router.

The record

CVE
CVE-2023-49254
Published
Jan 12, 2024
Updated
Jun 20, 2025
Vendor
Hongdian
Product
H8951-4G-ESP Firmware
Classifications
CWE-78, CAPEC-88, T1059
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 12, 2024CVE publishedPublication date reported by the CVE source.
  2. Jun 20, 2025Record 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?

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

  1. Affected versionversion=0 <2310271149

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Hongdian · H8951-4G-ESP Firmwareversion=0 <2310271149

Published CVSS scores

8.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
8.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:L/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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
CAPEC-88OS Command Injection
T1059Command and Scripting Interpreter

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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