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CVE-2026-102294

Authenticated OS Command Injection in TL-WR841N IPv6 WAN Configuration

HIGH
8.5
CVSS Score
Published: October 1, 2026 at 05:30 PM UTC
Updated: October 2, 2026 at 04:18 AM UTC
1 product affected across 1 vendorTL-WR841N

Using TL-WR841N v14 by TP-Link System Inc.?

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Severity
HIGH8.5
Exploit prediction
EPSS 0.9%
SSVC
No known exploit

Description

TP-Link TL-WR841N contains an authenticated OS command injection vulnerability in the IPv6 WAN configuration. A crafted IPv6 Gateway value is improperly incorporated into a system command, allowing an authenticated administrator to execute arbitrary operating system commands. Successful exploitation may allow unauthorized access to sensitive information, modification of device configuration or services, and disruption of device operation.

Affected

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

TL-WR841N· Tp Link System
60%
v < 4.19 Build 260820 (US)v < 4.19 Build 260821 (EN)
Affected range stops below 4.19 Build 260820 (US), so it looks safe — our inference, not a vendor statement
Affected range stops below 4.19 Build 260821 (EN), so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (3)

Patch
Source: cverecord
https://www.tp-link.com/en/support/download/tl-wr841n/v14/#Firmware
Patch
Source: cverecord
https://www.tp-link.com/us/support/download/tl-wr841n/v14/#Firmware
Vendor Advisory
Source: cverecord
https://www.tp-link.com/us/support/faq/5320/

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

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

CVSS

8.5HIGHTPLink
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-78

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