Cyber Resilience

CVE-2017-17411

RCE in Linksys Wvbr0 Firmware ≤ 1.0.41

Public PoCHigh EPSSRCECommand Injection
Published
21 December 2017
Modified
13 May 2026
CVSS Score v3 9.8
Click a component to see what it means
Raw vectorCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.88 99.7th percentile
Risk Priority 97 floored blend · peak EPSS

Summary

CVE-2017-17411 is a critical-severity OS Command Injection (CWE-78) vulnerability in Linksys Wvbr0 Firmware. Its CVSS base score is 9.8 (Critical).

Operationally, ranked in the top 0.3% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

OWASP Top 10 for Web (2025)

A05:2025 Injection

EU & UK References

Vulnerability Data

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Linksys WVBR0. Authentication is not required to exploit this vulnerability. The specific flaw exists within the web management portal. The issue lies in the lack of proper…

more

validation of user data before executing a system call. An attacker could leverage this vulnerability to execute code with root privileges. Was ZDI-CAN-4892.

CWE(s)
CWE-78

Related Threats

Likely ATT&CK TechniquesAI

Techniques this vulnerability likely enables, inferred from its description, weakness type, and attributed-actor tradecraft. Confidence is per-technique.

T1190 Exploit Public-Facing Application Initial Accessconfidence: HIGH
Unauthenticated remote code execution via the web management portal directly matches exploitation of a public-facing application.
attack.mitre.org →
T1059 Command and Scripting Interpreter Executionconfidence: HIGH
The flaw allows arbitrary system command execution through improper input validation before a system call.
attack.mitre.org →
T1068 Exploitation for Privilege Escalation Privilege Escalationconfidence: HIGH
Successful exploitation grants root-level privileges, constituting exploitation for privilege escalation.
attack.mitre.org →
inferred from description + CWE · MITRE ATT&CK Enterprise v19.0

CVEs Like This One

CVE-2024-42633Same vendor: Linksys
CVE-2024-57542Same vendor: Linksys
CVE-2025-5444Same vendor: Linksys
CVE-2025-5441Same vendor: Linksys
CVE-2025-9244Same vendor: Linksys
CVE-2025-8828Same vendor: Linksys
CVE-2025-5439Same vendor: Linksys
CVE-2026-4558Same vendor: Linksys
CVE-2025-5446Same vendor: Linksys
CVE-2025-8830Same vendor: Linksys

Affected Assets

linksys
wvbr0 firmware
≤ 1.0.41

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)

—

Detect
Catch it (NIST detect / respond)

—

Harden
Shrink the surface (DISA STIG)

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Validate
Prove the fix (OWASP ASVS)
  • V1.2.5
  • V1.2.8
  • V15.2.5

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

SC-27 Platform-independent Applications
addresses: CWE-78

Platform-independent apps typically execute inside a managed runtime or sandbox that restricts direct OS command execution, reducing the ability to exploit OS command injection.

SI-10 Information Input Validation
addresses: CWE-78

Validates inputs to block special elements that would alter OS command execution.

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

PR.PS-06's SDLC practices directly require secure coding and input handling that blocks command-injection defects, yet the single broad outcome leaves many specific neutralization vectors and verification gaps unaddressed.

PR.PS-02 partial match
prevents

Routine patching/maintenance can remediate known command-injection CVEs in dependencies (partial forward) but does nothing to stop developers from introducing improper neutralization in custom code (none reverse).

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.8.29 Security testing in development and acceptance mostly match
detects

Security testing and code review target insecure use of operating-system command interfaces, catching command-injection flaws introduced during development.

References