CVE-2026-7156CRITICAL 9.8EPSS p75.4%

CVE-2026-7156CVE-2026-7156

Description

A vulnerability was detected in Totolink A8000RU 7.1cu.643_b20200521. Affected is the function CsteSystem of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. The manipulation of the argument HTTP results in os 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
EPSS1.79% probability of exploitation · percentile 75.4% · 2026-06-19T12:03:05Z
Published2026-04-27
Last modified2026-04-28

Underlying weaknesses· 2

CWE-77CWE-78

References

  1. https://github.com/Litengzheng/vuldb_new2/blob/main/A8000RU/vul_320/README.md
  2. https://vuldb.com/submit/801142
  3. https://vuldb.com/vuln/359755
  4. https://vuldb.com/vuln/359755/cti
  5. https://www.totolink.net/

2

TypeTargetConfidenceTier
WeaknessImproper Neutralization of Special Elements used in a Command ('Command Injection')cwe-770%live
WeaknessImproper Neutralization of Special Elements used in an OS Command ('OS Command Injection')cwe-780%live

Related by meaning· 6

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