CVE-2025-13306Public exploitNetwork attack vector

Authenticated command execution via unsanitized host parameter

Published Nov 17, 2025 · Updated Nov 17, 2025

OS command injection in D-Link DWR-M920, DWR-M921, DIR-822K, and DIR-825M 1.1.5 allows remote authenticated users to execute commands. The formDebugDiagnosticRun handler formats the host parameter into a command buffer with sprintf and passes it unchanged to system(). A valid administrator session is required; shell metacharacters permit execution with web-server privileges, including device crash or data access.

CVSS severity8.8
High
EPSS probability8.25%
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 D-Link DWR-M920, DWR-M921, DIR-822K, and DIR-825M 1.1.5 allows remote authenticated users to execute commands. The formDebugDiagnosticRun handler formats the host parameter into a command buffer with sprintf and passes it unchanged to system(). A valid administrator session is required; shell metacharacters permit execution with web-server privileges, including device crash or data access.

The record

CVE
CVE-2025-13306
Published
Nov 17, 2025
Updated
Nov 17, 2025
Vendor
D-Link
Product
DWR-M920
Classifications
CWE-78, CWE-74, CWE-77, T1059.004
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Nov 17, 2025CVE publishedPublication date reported by the CVE source.
  2. Nov 17, 2025Record 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=1.1.5

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

D-Link · DWR-M920version=1.1.5
D-Link · DWR-M921version=1.1.5
D-Link · DIR-825Mversion=1.1.5
D-Link · DIR-822Kversion=1.1.5

Published CVSS scores

8.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
2.1VulDB CNACVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
6.3VulDB CNACVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
6.5VulDB CNAAV:N/AC:L/Au:S/C:P/I:P/A:P

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 exploitPublished

Weakness, pattern, technique

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
CWE-74Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')
T1059.004Command and Scripting Interpreter: Unix Shell

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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