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Vulnerability record · CVE-2026-31177 · published 23 April 2026

CVE-2026-31177: Totolink a3300r firmware os command injection vulnerability

TTotolink · A3300r Firmware

An issue was discovered in ToToLink A3300R firmware v17.0.0cu.557_B20221024 allowing attackers to execute arbitrary commands via the stunMinAlive parameter to /cgi-bin/cstecgi.cgi.

9.8 CVSS 3.1 Critical EPSS 1.4% · top 27.7% CWE-78 · OS command injection
9.8CVSS 3.1 base score
1.4%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

An issue was discovered in ToToLink A3300R firmware v17.0.0cu.557_B20221024 allowing attackers to execute arbitrary commands via the stunMinAlive parameter to /cgi-bin/cstecgi.cgi.

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
https://github.com/Svigo-o/TOTOLINK-Vul/tree/main/totolink-a3300r-stun-min-alive-cmd-injection ExploitThird Party Advisory
https://github.com/Svigo-o/TOTOLINK-Vul/tree/main/totolink-a3300r-stun-min-alive-cmd-injection ExploitThird Party Advisory

Track CVE-2026-31177 inside VULONE

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Related vulnerabilities

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

9.8CVE-2026-31178Totolink a3300r firmware os command injection vulnerabilityAn issue was discovered in ToToLink A3300R firmware v17.0.0cu.557_B20221024 allowing attackers to execute arbitrary commands via the stunMaxAlive par…EPSS 1.4%9.8CVE-2026-31181Totolink a3300r firmware os command injection vulnerabilityAn issue was discovered in ToToLink A3300R firmware v17.0.0cu.557_B20221024 allowing attackers to execute arbitrary commands via the stunServerAddr p…EPSS 1.4%9.8CVE-2026-31175Totolink a3300r firmware command injection vulnerabilityAn issue was discovered in ToToLink A3300R firmware v17.0.0cu.557_B20221024 allowing attackers to execute arbitrary commands via the stunEnable param…EPSS 1.4%9.8CVE-2026-31170Totolink a3300r firmware command injection vulnerabilityAn issue was discovered in ToToLink A3300R firmware v17.0.0cu.557_B20221024 allowing attackers to execute arbitrary commands via the stun-pass parame…EPSS 1.4%9.8CVE-2025-52046Totolink a3300r firmware command injection vulnerabilityTotolink A3300R V17.0.0cu.596_B20250515 was found to contain a command injection vulnerability in the sub_4197C0 function via the mac and desc parame…EPSS 5.5%9.8CVE-2024-24325Totolink a3300r firmware os command injection vulnerabilityTOTOLINK A3300R V17.0.0cu.557_B20221024 was discovered to contain a command injection vulnerability via the enable parameter in the setParentalRules …EPSS 1.7%9.8CVE-2024-24326Totolink a3300r firmware os command injection vulnerabilityTOTOLINK A3300R V17.0.0cu.557_B20221024 was discovered to contain a command injection vulnerability via the arpEnable parameter in the setStaticDhcpR…EPSS 1.6%9.8CVE-2024-24327Totolink a3300r firmware os command injection vulnerabilityTOTOLINK A3300R V17.0.0cu.557_B20221024 was discovered to contain a command injection vulnerability via the pppoePass parameter in the setIpv6Cfg fun…EPSS 1.6%

Source: NIST National Vulnerability Database (record CVE-2026-31177), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.