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Vulnerability record · CVE-2020-9374 · published 24 February 2020

CVE-2020-9374: Tp-link tl-wr849n firmware os command injection vulnerability

Tp Link · Tl Wr849n Firmware

On TP-Link TL-WR849N 0.9.1 4.16 devices, a remote command execution vulnerability in the diagnostics area can be exploited when an attacker sends specific shell metacharacters to the panel's traceroute feature.

9.8 CVSS 3.1 Critical EPSS 43% · top 1.3% CWE-78 · OS command injection
9.8CVSS 3.1 base score, v2 7.5
43%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
6References, 6 tagged exploit
17 Jun 2026Last modified by NVD

Description

On TP-Link TL-WR849N 0.9.1 4.16 devices, a remote command execution vulnerability in the diagnostics area can be exploited when an attacker sends specific shell metacharacters to the panel's traceroute feature.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://packetstormsecurity.com/files/156584/TP-Link-TL-WR849N-Remote-Code-Execution.html ExploitThird Party AdvisoryVDB Entry
https://fireshellsecurity.team/hack-n-routers/ ExploitThird Party Advisory
https://github.com/ElberTavares/routers-exploit/tree/master/tp-link ExploitThird Party Advisory
http://packetstormsecurity.com/files/156584/TP-Link-TL-WR849N-Remote-Code-Execution.html ExploitThird Party AdvisoryVDB Entry
https://fireshellsecurity.team/hack-n-routers/ ExploitThird Party Advisory
https://github.com/ElberTavares/routers-exploit/tree/master/tp-link ExploitThird Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2020-9374), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.