Cyber Resilience

CVE-2025-15191

Command Injection in Dlink Dwr-M920 Firmware ≤ 1.1.50

Public PoCCommand Injection
Published
29 December 2025
Modified
29 April 2026
Patch / advisory
View advisory
CVSS Score v4 2.1
Click a component to see what it means
Raw vectorCVSS: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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
EPSS Score 0.036 88th percentile
Risk Priority 32 floored blend · peak EPSS

Summary

CVE-2025-15191 is a low-severity Injection (CWE-74) vulnerability in Dlink Dwr-M920 Firmware. Its CVSS base score is 2.1 (Low).

Operationally, exploitation aligns with the MITRE ATT&CK technique Command and Scripting Interpreter (T1059); ranked in the top 12% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

The strongest mitigations our analysis identified map to SA-11 (Developer Testing and Evaluation) and SI-10 (Information Input Validation) — see the control section below for these in your framework.

Deeper analysis AI-assisted summary

Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.

CVE-2025-15191 is a command injection vulnerability in D-Link DWR-M920 routers, affecting versions up to 1.1.50. The flaw exists in the function sub_4155B4 within the file /boafrm/formLtefotaUpgradeFibocom, where manipulation of the fota_url argument triggers command injection. It is associated with CWEs-74 and CWE-77 and carries a CVSS v3.1 base score of 6.3 (AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L).

Remote exploitation is possible by an attacker possessing low privileges (PR:L), requiring network access with low attack complexity and no user interaction. Successful exploitation enables limited impacts on confidentiality, integrity, and availability, such as executing arbitrary commands within the context of the vulnerable function.

Advisories and references, including GitHub entries at https://github.com/panda666-888/vuls/blob/main/d-link/dwr-m920/formLtefotaUpgradeFibocom.md and its PoC section, along with VulDB pages at https://vuldb.com/?ctiid.338576, https://vuldb.com/?id.338576, and https://vuldb.com/?submit.723554, document the vulnerability and provide a publicly available exploit.

The exploit has been made available to the public, heightening the potential for real-world attacks against unpatched devices.

OWASP Top 10 for Web (2025)

A05:2025 Injection

EU & UK References

Vulnerability Data

A weakness has been identified in D-Link DWR-M920 up to 1.1.50. The affected element is the function sub_4155B4 of the file /boafrm/formLtefotaUpgradeFibocom. This manipulation of the argument fota_url causes command injection. Remote exploitation of the attack is possible. The exploit…

more

has been made available to the public and could be exploited.

CWE(s)
CWE-74CWE-77

Related Threats

MITRE ATT&CK Enterprise Techniques

T1059 Command and Scripting Interpreter Execution
Adversaries may abuse command and script interpreters to execute commands, scripts, or binaries.
attack.mitre.org →
T1190 Exploit Public-Facing Application Initial Access
Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.
attack.mitre.org →
T1221 Template Injection Stealth
Adversaries may create or modify references in user document templates to conceal malicious code or force authentication attempts.
attack.mitre.org →
T1659 Content Injection Initial Access
Adversaries may gain access and continuously communicate with victims by injecting malicious content into systems through online network traffic.
attack.mitre.org →
T1674 Input Injection Execution
Adversaries may simulate keystrokes on a victim’s computer by various means to perform any type of action on behalf of the user, such as launching the command interpreter using keyboard shortcuts, typing an inline script to be executed,…
attack.mitre.org →
T1059.001 PowerShell Execution
Adversaries may abuse PowerShell commands and scripts for execution.
attack.mitre.org →
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2026-10878Same product: Dlink Dwr-M920
CVE-2025-15192Same product: Dlink Dwr-M920
CVE-2026-11339Same product: Dlink Dwr-M920
CVE-2025-13306Same product: Dlink Dwr-M920
CVE-2025-10689Same vendor: Dlink
CVE-2025-11100Same vendor: Dlink
CVE-2026-1625Same vendor: Dlink
CVE-2025-15391Same vendor: Dlink
CVE-2026-4205Same vendor: Dlink
CVE-2026-8344Same vendor: Dlink

Affected Assets

dlink
dwr-m920 firmware
≤ 1.1.50

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)

—

Detect
Catch it (NIST detect / respond)

—

Harden
Shrink the surface (DISA STIG)

—

Validate
Prove the fix (OWASP ASVS)
  • V1.2.1
  • V1.2.3
  • V1.2.5
  • V1.2.8

Mitigating Controls (NIST 800-53 r5) AI

SA-11 Developer Testing and Evaluation good match

Developer testing and evaluation can discover command-construction flaws before deployment.

SI-10 Information Input Validation good match

SI-10 directly requires validation of information inputs to reject malformed or special-element content before it reaches downstream parsers.

SA-8 Security and Privacy Engineering Principles partial match

Secure engineering principles include proper neutralization and safe command construction practices.

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.PS-06 mostly match
prevents

Secure SDLC practices directly require input validation and output encoding that prevent injection flaws.

DE.CM-09 partial match
prevents

Runtime monitoring of software and data can detect anomalous command execution resulting from injection.

ID.RA-01 partial match
prevents

Identifying recorded vulnerabilities enables remediation of command-injection flaws before exploitation.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

A.8.28 Secure coding mostly match
prevents

Secure coding standards require proper escaping and parameterization of commands, directly eliminating CWE-77.

A.8.29 Security testing in development and acceptance mostly match
finds

Security testing in development catches injection vulnerabilities before release.

A.8.15 Logging partial match
finds

Logging supports detection of injection attempts but does not prevent the weakness.

A.8.16 Monitoring activities partial match
finds

Monitoring activities can identify active injection attacks after they occur.

A.8.25 Secure development life cycle partial match
prevents

Secure development life cycle mandates input validation and output encoding that directly prevent injection flaws.

A.8.26 Application security requirements partial match
prevents

Application security requirements explicitly call for controls against injection attacks in software design.

References