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Vulnerability record · CVE-2023-43137 · published 20 September 2023

CVE-2023-43137: Tp-link tl-er5120g firmware command injection vulnerability

Tp Link · Tl Er5120g Firmware

TPLINK TL-ER5120G 4.0 2.0.0 Build 210817 Rel.80868n has a command injection vulnerability, when an attacker adds ACL rules after authentication, and the rule name parameter has injection points.

8.8 CVSS 3.1 High EPSS 2.4% · top 16.4% CWE-77 · Command injection
8.8CVSS 3.1 base score
2.4%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

TPLINK TL-ER5120G 4.0 2.0.0 Build 210817 Rel.80868n has a command injection vulnerability, when an attacker adds ACL rules after authentication, and the rule name parameter has injection points.

CVSS:3.1/AV:N/AC:L/PR:L/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
https://github.com/7R4C4R/CVE/blob/main/TPLINK-TL-ER5120G/command%20injection/01/command%20injection01.md ExploitThird Party Advisory
https://github.com/7R4C4R/CVE/blob/main/TPLINK-TL-ER5120G/command%20injection/01/command%20injection01.md ExploitThird Party Advisory

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Related vulnerabilities

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

9.8CVE-2023-43135Tp-link tl-er5120g firmware missing authorization vulnerabilityThere is an unauthorized access vulnerability in TP-LINK ER5120G 4.0 2.0.0 Build 210817 Rel.80868n, which allows attackers to obtain sensitive inform…EPSS 0.92%8.8CVE-2023-43138Tp-link tl-er5120g firmware command injection vulnerabilityTPLINK TL-ER5120G 4.0 2.0.0 Build 210817 Rel.80868n has a command injection vulnerability, when an attacker adds NAPT rules after authentication, and…EPSS 2.4%8.8CVE-2017-16957Tp-link tl-wvr300 firmware os command injection vulnerabilityTP-Link TL-WVR, TL-WAR, TL-ER, and TL-R devices allow remote authenticated users to execute arbitrary commands via shell metacharacters in the iface …EPSS 5.6%8.8CVE-2017-16958Tp-link tl-wvr300 firmware os command injection vulnerabilityTP-Link TL-WVR, TL-WAR, TL-ER, and TL-R devices allow remote authenticated users to execute arbitrary commands via shell metacharacters in the t_bind…EPSS 2.9%8.8CVE-2017-16960Tp-link tl-er5510g os command injection vulnerabilityTP-Link TL-WVR, TL-WAR, TL-ER, and TL-R devices allow remote authenticated users to execute arbitrary commands via shell metacharacters in the t_bind…EPSS 2.4%6.5CVE-2017-16959Tp-link tl-wvr300 firmware path traversal vulnerabilityThe locale feature in cgi-bin/luci on TP-Link TL-WVR, TL-WAR, TL-ER, and TL-R devices allows remote authenticated users to test for the existence of …EPSS 1.9%9.8CVE-2026-8037Progress LoadMaster API OS Command Injection RCEProgress LoadMaster (and related ADC products) contain an OS command injection flaw in multiple API command endpoints where unsanitized input is pass…KEVEPSS 77%analysed8.7CVE-2026-42271LiteLLM MCP test endpoints allow authenticated OS command injectionLiteLLM versions 1.74.2 through before 1.83.7 expose two MCP preview endpoints (POST /mcp-rest/test/connection and POST /mcp-rest/test/tools/list) th…KEVEPSS 13%analysed

Source: NIST National Vulnerability Database (record CVE-2023-43137), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.