Which products and versions are affected by CVE-2017-17411?

Affected: Wvbr0 Firmware (Linksys); Linksys WVBR0 versions >= WVBR0. The full list is in the CVE brief.

Is CVE-2017-17411 being exploited in the wild?

It is exploited in the wild, listed in Industry KEV feed since Apr 12, 2021.

Is CVE-2017-17411 in the CISA KEV catalog?

No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.

Is there a public exploit for CVE-2017-17411?

Public exploit code is available.

Is there a fix for CVE-2017-17411?

Fixed versions are available, including Wvbr0 Firmware 1.0.41.

How urgently should CVE-2017-17411 be patched?

Brandefense priority: patch immediately, because it is listed as exploited in the wild.

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Vulnerability Intelligence

CVE-2017-17411

CriticalExploitedPublic exploit

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Linksys WVBR0.

Published Dec 21, 2017 · Updated May 12, 2026

Key Facts

Patch immediately

CVE-2017-17411 is a critical-severity vulnerability (CVSS 9.8 v3) affecting Wvbr0 Firmware (Linksys), Linksys WVBR0.
It is exploited in the wild, listed in Industry KEV feed since Apr 12, 2021. Public exploit code is available.
EPSS estimates a 88% probability of exploitation in the next 30 days.
Fixed versions are available, including Wvbr0 Firmware 1.0.41.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.

CVSS v3

9.8

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS (30-day exploit likelihood)

88%

Higher than 99.7% of all scored CVEs

Exploited in the wild

Yes

1 catalog listing

Public exploit code

Available

Proof-of-concept or weaponized module

Get the full CVE-2017-17411 brief as a PDF

Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.

Description

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 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.

Known-Exploited Catalog Listings

Catalog	Added	Remediation due	Ransomware use
Industry KEV feed	Apr 12, 2021	n/a	Not reported

Required action: Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.

Affected Products

2 affected entries in total

Product	Affected versions	Fixed in
Wvbr0 FirmwareLinksys	See advisory	1.0.41
Linksys WVBR0	>= WVBR0	n/a

Patched Releases

Wvbr0 Firmware

1.0.41

Timeline

Publicly disclosed
Dec 21, 2017
Added to Industry KEV feed
Apr 12, 2021
Last updated
May 12, 2026

Weakness Type

CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

References

advisoryhttps://zerodayinitiative.com/advisories/ZDI-17-973
advisory102212
exploitMSF linksys_wvbr0_user_agent_exec_noauth.rb
exploithttps://github.com/rapid7/metasploit-framework/pull/9336
exploitVulnCheck exploitation report

4 more references in the full CVE brief

FAQ

Common Questions.

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Linksys WVBR0.
Affected: Wvbr0 Firmware (Linksys); Linksys WVBR0 versions >= WVBR0. The full list is in the CVE brief.
It is exploited in the wild, listed in Industry KEV feed since Apr 12, 2021.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
Fixed versions are available, including Wvbr0 Firmware 1.0.41.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.

Is CVE-2017-17411 Running On Your Attack Surface?

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