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Vulnerability record · CVE-2020-25499 · published 9 December 2020

CVE-2020-25499: Totolink a3002r firmware os command injection vulnerability

TTotolink · A3002r Firmware

TOTOLINK A3002RU-V2.0.0 B20190814.1034 allows authenticated remote users to modify the system's 'Run Command'. An attacker can use this functionality to execute arbitrary OS commands on the router.

8.8 CVSS 3.1 High EPSS 4.2% · top 9.4% CWE-78 · OS command injectionCWE-862 · Missing authorization
8.8CVSS 3.1 base score, v2 9.0
4.2%EPSS exploitation probability, 30 days
NoNot in CISA KEV
13Affected product versions listed by NVD
4References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

TOTOLINK A3002RU-V2.0.0 B20190814.1034 allows authenticated remote users to modify the system's 'Run Command'. An attacker can use this functionality to execute arbitrary OS commands on the router.

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

Affected products

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

References

LinkTags
https://github.com/kdoos/Vulnerabilities/blob/main/RCE_TOTOLINK-A3002RU-V2 ExploitThird Party Advisory
https://www.totolink.net/home/index/newsss/id/196.html PatchVendor Advisory
https://github.com/kdoos/Vulnerabilities/blob/main/RCE_TOTOLINK-A3002RU-V2 ExploitThird Party Advisory
https://www.totolink.net/home/index/newsss/id/196.html PatchVendor Advisory

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Related vulnerabilities

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

9.8CVE-2025-55591Totolink a3002r firmware command injection vulnerabilityTOTOLINK-A3002R v4.0.0-B20230531.1404 was discovered to contain a command injection vulnerability in the devicemac parameter in the formMapDel endpoi…EPSS 7.6%9.8CVE-2025-45863Totolink a3002r firmware classic buffer overflow vulnerabilityTOTOLINK A3002R v4.0.0-B20230531.1404 was discovered to contain a buffer overflow via the macstr parameter in the formMapDelDevice interface.EPSS 0.61%9.8CVE-2025-45861Totolink a3002r firmware classic buffer overflow vulnerabilityTOTOLINK A3002R v4.0.0-B20230531.1404 was discovered to contain a buffer overflow via the routername parameter in the formDnsv6 interface.EPSS 0.61%9.8CVE-2025-45865Totolink a3002r firmware classic buffer overflow vulnerabilityTOTOLINK A3002R v4.0.0-B20230531.1404 was discovered to contain a buffer overflow via the dnsaddr parameter in the formDhcpv6s interface.EPSS 0.61%9.8CVE-2025-45858Totolink a3002r firmware os command injection vulnerabilityTOTOLINK A3002R v4.0.0-B20230531.1404 was discovered to contain a command injection vulnerability via the FUN_00459fdc function.EPSS 11%9.8CVE-2025-25579Totolink a3002r firmware os command injection vulnerabilityTOTOLINK A3002R V4.0.0-B20230531.1404 is vulnerable to Command Injection in /bin/boa via bandstr.EPSS 10%9.8CVE-2024-34195Totolink a3002r firmware out-of-bounds write vulnerabilityTOTOLINK AC1200 Wireless Router A3002R Firmware V1.1.1-B20200824 is vulnerable to Buffer Overflow. In the boa server program's CGI handling function …EPSS 0.94%9.8CVE-2024-42520Totolink a3002r firmware classic buffer overflow vulnerabilityTOTOLINK A3002R v4.0.0-B20230531.1404 contains a buffer overflow vulnerability in /bin/boa via formParentControl.EPSS 0.63%

Source: NIST National Vulnerability Database (record CVE-2020-25499), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.