CVE-2026-5105

| EUVD-2026-17056 MEDIUM
2026-03-30 VulDB GHSA-3h9m-4hx4-r4rj
5.3
CVSS 4.0
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CVSS Vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
X

Lifecycle Timeline

4
PoC Detected
Mar 30, 2026 - 15:40 vuln.today
Public exploit code
Analysis Generated
Mar 30, 2026 - 03:45 vuln.today
EUVD ID Assigned
Mar 30, 2026 - 03:45 euvd
EUVD-2026-17056
CVE Published
Mar 30, 2026 - 03:00 nvd
MEDIUM 5.3

Description

A vulnerability was detected in Totolink A3300R 17.0.0cu.557_b20221024. The affected element is the function setVpnPassCfg of the file /cgi-bin/cstecgi.cgi of the component Parameter Handler. Performing a manipulation of the argument pptpPassThru results in command injection. It is possible to initiate the attack remotely. The exploit is now public and may be used.

Analysis

Command injection in Totolink A3300R firmware version 17.0.0cu.557_b20221024 allows authenticated remote attackers to execute arbitrary commands via manipulation of the pptpPassThru parameter in the setVpnPassCfg function of /cgi-bin/cstecgi.cgi. The vulnerability has a CVSS score of 6.3 (medium severity) with network-accessible attack vector and low complexity; publicly available exploit code exists, making this an actionable threat for affected deployments.

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Priority Score

49
Low Medium High Critical
KEV: 0
EPSS: +2.9
CVSS: +26
POC: +20

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CVE-2026-5105 vulnerability details – vuln.today

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