CVE-2026-7719

CRITICAL 9.8

Totolink WA300 POST Request cstecgi.cgi loginauth buffer overflow

CVSS Score

9.8

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-120 CWE-119
Vendor	totolink
Product	wa300
Published	May 4, 2026

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CVSS v3 Breakdown

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

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

Totolink / WA300

5.2cu.7112_B20190227

References

NVD ↗ CVE.org ↗ EPSS Data ↗

vuldb.com: https://vuldb.com/vuln/360895 vuldb.com: https://vuldb.com/vuln/360895/cti vuldb.com: https://vuldb.com/submit/807197 lavender-bicycle-a5a.notion.site: https://lavender-bicycle-a5a.notion.site/TOTOLINK-WA300-loginAuth-34553a41781f8050b8ffc9e90a103cd5 totolink.net: https://www.totolink.net/

Credits

🔍 wxhwxhwxh_mie (VulDB User)