PT-2026-36704 · Totolink · Wa300

Wxhwxhwxh_Mie · Published 2026-05-03 · Updated 2026-06-02 · CVE-2026-7719

Positive Technologies (AI Summary)

CVSS v2.0

10

Critical

Base vector

AV:N/AC:L/Au:N/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions Totolink WA300 version 5.2cu.7112 B20190227

Description A buffer overflow exists in the POST Request Handler component. A remote attacker can trigger this issue by manipulating the http host argument within the loginauth() function of the '/cgi-bin/cstecgi.cgi' endpoint.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

RCE

Buffer Overflow

Weakness Enumeration

CWE-119

CWE-120

Related Identifiers

CVE-2026-7719

Affected Products

Wa300

References · 19

• 🔥 https://lavender-bicycle-a5a.notion.site/TOTOLINK-WA300-loginAuth-34553a41781f8050b8ffc9e90a103cd5 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2026-7719 · Security Note
• https://twitter.com/DFIR_Lab/status/2058338524974219535 · Twitter Post
• https://twitter.com/lyrie_ai/status/2055106164849852723 · Twitter Post
• https://twitter.com/lyrie_ai/status/2061670704437715205 · Twitter Post
• https://twitter.com/vuldb/status/2053962926982316038 · Twitter Post
• https://t.me/cveNotify/161969 · Telegram Post
• https://twitter.com/vuldb/status/2050853671467159999 · Twitter Post
• https://twitter.com/VulmonFeeds/status/2051165552333263164 · Twitter Post
• https://vuldb.com/submit/807197 · Note
• https://reddit.com/r/pwnhub/comments/1t3ink0/critical_buffer_overflow_exploit_exposed_in · Reddit Post
• https://t.me/CVEtracker/52609 · Telegram Post
• https://vuldb.com/vuln/360895 · Note
• https://twitter.com/ADKCyber/status/2055401525564833924 · Twitter Post
• https://twitter.com/lyrie_ai/status/2055106163029541013 · Twitter Post