CVE-2026-7503HIGH 8.8EPSS p35.5%

CVE-2026-7503CVE-2026-7503

Description

A vulnerability was detected in code-projects for Plugin 4.1.2cu.5137. The impacted element is the function setWiFiMultipleConfig in the library /lib/cste_modules/wireless.so of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument wepkey2 results in buffer overflow. The attack can be launched 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
EPSS0.45% probability of exploitation · percentile 35.5% · 2026-06-19T12:03:05Z
Published2026-04-30
Last modified2026-05-01

Underlying weaknesses· 2

CWE-119CWE-120

References

  1. https://code-projects.org/
  2. https://github.com/xyh4ck/iot_poc/blob/main/TOTOLINK/A800R/02_Buffer_Overflow_setWiFiMultipleConfig.md
  3. https://vuldb.com/submit/803120
  4. https://vuldb.com/vuln/360313
  5. https://vuldb.com/vuln/360313/cti

2

TypeTargetConfidenceTier
WeaknessImproper Restriction of Operations within the Bounds of a Memory Buffercwe-1190%live
WeaknessBuffer Copy without Checking Size of Input ('Classic Buffer Overflow')cwe-1200%live

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