PT-2026-3440 · Totolink · Totolink Lr350

Wxhwxhwxh_Tutu · Published 2026-01-10 · Updated 2026-01-29 · CVE-2026-1156

Positive Technologies (AI Summary)

CVSS v2.0

9.0

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Totolink LR350 version 9.3.5u.6369 B20220309

Description A flaw exists in the setWiFiBasicCfg() function within the /cgi-bin/cstecgi.cgi file of the affected software. This issue is a buffer overflow that occurs when processing the ssid parameter. Successful exploitation of this issue by a remote attacker may lead to a denial-of-service condition. The exploit has been publicly disclosed.

Recommendations Totolink LR350 version 9.3.5u.6369 B20220309: At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Buffer Overflow

Weakness Enumeration

CWE-119

CWE-120

Related Identifiers

BDU:2026-00607

CVE-2026-1156

Affected Products

Totolink Lr350

References · 15

• 🔥 https://lavender-bicycle-a5a.notion.site/TOTOLINK-LR350-setWiFiBasicCfg-2e453a41781f80a2ad43e85bf5d46659?source=copy_link · Exploit
• https://bdu.fstec.ru/vul/2026-00607 · Security Note
• https://osv.dev/vulnerability/CVE-2026-1156 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-1156 · Security Note
• https://lavender-bicycle-a5a.notion.site/TOTOLINK-LR350-setWiFiBasicCfg-2e453a41781f80a2ad43e85bf5d46659 · Note
• https://t.me/cveNotify/150304 · Telegram Post
• https://twitter.com/CveFindCom/status/2013259960151384211 · Twitter Post
• https://twitter.com/CVEnew/status/2013251482767032682 · Twitter Post
• https://vuldb.com/?submit.735722 · Note
• https://twitter.com/cracbot/status/2015016794382315579 · Twitter Post
• https://twitter.com/VulmonFeeds/status/2013265418060742981 · Twitter Post
• https://twitter.com/TheHackerWire/status/2013262400552837552 · Twitter Post
• https://vuldb.com/?id.341750 · Note
• https://totolink.net · Note
• https://vuldb.com/?ctiid.341750 · Note