CVE-2026-7749HIGH 8.8EPSS p42.3%

CVE-2026-7749CVE-2026-7749

Description

A security vulnerability has been detected in Totolink N300RH 3.2.4-B20220812. This affects the function setWanConfig of the file /cgi-bin/cstecgi.cgi of the component POST Request Handler. The manipulation of the argument priDns leads to buffer overflow. The attack may be initiated remotely. The exploit has been disclosed publicly 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
EPSS0.56% probability of exploitation · percentile 42.3% · 2026-06-19T12:03:05Z
Published2026-05-04
Last modified2026-05-04

Underlying weaknesses· 2

CWE-119CWE-120

References

  1. https://lavender-bicycle-a5a.notion.site/TOTOLINK-N300RH-setWanConfig-34553a41781f80ed8500d9b8d54074f2
  2. https://vuldb.com/submit/807203
  3. https://vuldb.com/vuln/360924
  4. https://vuldb.com/vuln/360924/cti
  5. https://www.totolink.net/

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

Related by meaning· 6

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

CVE
CVE-2026-7748
CVE
CVE-2026-7747
CVE
CVE-2026-7750
CVE
CVE-2026-7719
CVE
CVE-2026-7717
CVE
CVE-2026-1326
Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.