CVE-2026-5020CRITICAL 9.8EPSS p80.5%

CVE-2026-5020CVE-2026-5020

Description

A vulnerability was detected in Totolink A3600R 4.1.2cu.5182_B20201102. Affected by this issue is the function setNoticeCfg of the file /cgi-bin/cstecgi.cgi of the component Parameter Handler. The manipulation of the argument NoticeUrl results in command injection. The attack may be launched remotely. The exploit is now public and may be used.

Scoring

CVSS 3.19.8 (CRITICAL)
VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS2.23% probability of exploitation · percentile 80.5% · 2026-06-21T12:00:28Z
Published2026-03-29
Last modified2026-04-29

Underlying weaknesses· 2

CWE-74CWE-77

References

  1. https://lavender-bicycle-a5a.notion.site/TOTOLINK_A3600R_setNoticeCfg-32253a41781f80c197eaf8e7558c5ed1?source=copy_link
  2. https://vuldb.com/submit/779536
  3. https://vuldb.com/vuln/353905
  4. https://vuldb.com/vuln/353905/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

Related by meaning· 6

Nearest entities by semantic similarity across the cs-graph corpus.

CVE
CVE-2026-5101
CVE
CVE-2026-5103
CVE
CVE-2026-5102
CVE
CVE-2026-5104
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CVE-2026-5176
CVE
CVE-2026-1149
Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.