CVE-2026-5853CRITICAL 9.8EPSS p96.1%

CVE-2026-5853CVE-2026-5853

Description

A security vulnerability has been detected in Totolink A7100RU 7.4cu.2313_b20191024. Affected by this vulnerability is the function setIpv6LanCfg of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. Such manipulation of the argument addrPrefixLen leads to os command injection. The attack may be performed from remote. The exploit has been disclosed publicly 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
EPSS14.28% probability of exploitation · percentile 96.1% · 2026-06-19T12:03:05Z
Published2026-04-09
Last modified2026-04-27

Underlying weaknesses· 2

CWE-77CWE-78

References

  1. https://github.com/Litengzheng/vuldb_new/blob/main/A7100RU/vul_159/README.md
  2. https://vuldb.com/submit/791274
  3. https://vuldb.com/vuln/356379
  4. https://vuldb.com/vuln/356379/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.