CVE-2024-6145

Actiontec WCB6200Q Cookie Format String Remote Code Execution Vulnerability

HIGH
8.8
CVSS Score
Published: June 18, 2024 at 11:39 PM UTC
Updated: June 17, 2026 at 08:17 AM UTC
2 products affected across 1 vendorWCB6200Q FirmwareWcb6200Q

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Severity
HIGH8.8
Exploit prediction
EPSS 1%
SSVC
No known exploit

Description

Actiontec WCB6200Q Cookie Format String Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Actiontec WCB6200Q routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the HTTP server. A crafted Cookie header in an HTTP request can trigger the use of a format specifier from a user-supplied string. An attacker can leverage this vulnerability to execute code in the context of the HTTP server. Was ZDI-CAN-21417.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

1.2L.03.51.2l.03.5
actiontec-wcb6200q (same device)
All versions

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

x_research-advisoryThird Party AdvisoryVDB Entry
https://www.zerodayinitiative.com/advisories/ZDI-24-808/

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
ADJACENT_NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-134

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