CVE-2024-2991Public exploitNetwork attack vector

Authenticated command execution via unvalidated MAC parameter

Published Mar 27, 2024 · Updated Aug 12, 2024

Command injection in the FH1203 2.0.1.6 web interface allows remote authenticated users to execute arbitrary operating-system commands. The formWriteFacMac handler for /goform/WriteFacMac builds a device command from the attacker-controlled mac parameter without validating command syntax. Access to the router management interface is required, and successful injection runs commands with the web service privileges on the appliance.

CVSS severity8.8
High
EPSS probability7.61%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Command injection in the FH1203 2.0.1.6 web interface allows remote authenticated users to execute arbitrary operating-system commands. The formWriteFacMac handler for /goform/WriteFacMac builds a device command from the attacker-controlled mac parameter without validating command syntax. Access to the router management interface is required, and successful injection runs commands with the web service privileges on the appliance.

The record

CVE
CVE-2024-2991
Published
Mar 27, 2024
Updated
Aug 12, 2024
Vendor
Shenzhen Tenda Technology Co., Ltd.
Product
FH1203
Classifications
CWE-77, T1059
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 27, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 12, 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?

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

  1. Affected versionversion=2.0.1.6

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Shenzhen Tenda Technology Co., Ltd. · FH1203version=2.0.1.6
Shenzhen Tenda Technology Co., Ltd. · FH1203 Firmwareversion=2.0.1.6

Published CVSS scores

8.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
6.5VulDBAV:N/AC:L/Au:S/C:P/I:P/A:P
6.3VulDBCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

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

Weakness, pattern, technique

CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')
T1059Command and Scripting Interpreter

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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