CVE-2026-5105HIGH 8.8EPSS p88.2%

CVE-2026-5105CVE-2026-5105

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.

Scoring

CVSS 3.18.8 (HIGH)
VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS3.67% probability of exploitation · percentile 88.2% · 2026-06-18T12:00:27Z
Published2026-03-30
Last modified2026-04-29

Underlying weaknesses· 2

CWE-74CWE-77

References

  1. https://github.com/LvHongW/Vuln-of-totolink_A3300R/tree/main/A3300R_pptpPassThru_cmd_inject
  2. https://vuldb.com/submit/779143
  3. https://vuldb.com/vuln/354130
  4. https://vuldb.com/vuln/354130/cti
  5. https://www.totolink.net/

2

TypeTargetConfidenceTier
WeaknessImproper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')cwe-740%live
WeaknessImproper Neutralization of Special Elements used in a Command ('Command Injection')cwe-770%live

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Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.