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CVE-2026-7719

CRITICAL Exploitation: PoC
9.8
CVSS 3.1
Description
A security flaw has been discovered in Totolink WA300 5.2cu.7112_B20190227. The affected element is the function loginauth of the file /cgi-bin/cstecgi.cgi of the component POST Request Handler. The manipulation of the argument http_host results in buffer overflow. The attack may be launched remotely. The exploit has been released to the public and may be used for attacks.

Metadata

CVE ID
CVE-2026-7719
State
PUBLISHED
Assigner
VulDB
Reserved
2026-05-03 08:09 UTC
Published
2026-05-04 01:30 UTC
Last updated
2026-05-05 18:57 UTC
Primary CWE
CWE-120
Buffer Overflow
Vendor / Product
Totolink / WA300
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 WA300 — 5.2cu.7112_B20190227
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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