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CVE-2026-7747

CRITICAL Exploitation: PoC
9.8
CVSS 3.1
Description
A security flaw has been discovered in Totolink N300RH 3.2.4-B20220812. Affected by this vulnerability is the function loginauth of the file /cgi-bin/cstecgi.cgi of the component Parameter Handler. Performing a manipulation of the argument Password results in buffer overflow. The attack can be initiated remotely. The exploit has been released to the public and may be used for attacks.

Metadata

CVE ID
CVE-2026-7747
State
PUBLISHED
Assigner
VulDB
Reserved
2026-05-03 17:20 UTC
Published
2026-05-04 08:15 UTC
Last updated
2026-05-04 12:43 UTC
Primary CWE
CWE-120
Buffer Overflow
Vendor / Product
Totolink / N300RH
Sources
cve.org  ·  NVD

Severity & Metrics

9.8 CRITICAL CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
SSVC — CISA Coordinator
Exploitation
PoC
Automatable
yes
Tech. Impact
total
Affected products (1)
VendorProductPlatformVersions
Totolink N300RH — 3.2.4-B20220812
Weakness (CWE)
CWESourceDescription
CWE-119 cna Memory Corruption
CWE-120 cna Buffer Overflow
CVSS scores (4)
ScoreSeverityVersionSourceVector
10.0 N/D 2.0 cna AV:N/AC:L/Au:N/C:C/I:C/A:C/E:POC/RL:ND/RC:UR
9.8 CRITICAL 3.1 cna CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
9.8 CRITICAL 3.0 cna CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
9.3 CRITICAL 4.0 cna CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
References (5)
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