PT-2026-29187 · Totolink · Totolink A3300R

Lvhw · CVE-2026-5177 · Published 2026-03-13 · Updated 2026-03-31

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 A3300R version 17.0.0cu.557 b20221024

Description A flaw exists in the setWiFiBasicCfg function within the /cgi-bin/cstecgi.cgi file. Manipulation of the rxRate argument can result in command injection, potentially allowing for remote attacks. The exploit for this issue has been publicly released.

Recommendations Apply a software update that addresses the vulnerability in the setWiFiBasicCfg function. As a temporary workaround, restrict access to the /cgi-bin/cstecgi.cgi file. Avoid using the rxRate parameter in the setWiFiBasicCfg function until a patch is available.

Exploit

Fix

Command Injection

Special Elements Injection

Weakness Enumeration

CWE-77

CWE-74

Related Identifiers

BDU:2026-09171

CVE-2026-5177

Affected Products

Totolink A3300R

References · 17

• 🔥 https://github.com/LvHongW/Vuln-of-totolink_A3300R/tree/main/A3300R_rxRate_cmd_inject · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2026-5177 · Security Note
• https://bdu.fstec.ru/vul/2026-09171 · Security Note
• https://github.com/LvHongW/Vuln-of-totolink_A3300R/tree/main/A3300R_rtLogServer_cmd_inject · Note
• https://vuldb.com/submit/779146 · Note
• https://totolink.net/home/menu/detail/menu_listtpl/download/id/185/ids/36.html · Note
• https://twitter.com/CVEarity/status/2038964816807895407 · Twitter Post
• https://vuldb.com/vuln/354245/cti · Note
• https://totolink.net · Note
• https://dbugs.ptsecurity.com/vulnerability/PT-2026-29187?fts%5Bvalue%5D=CVE-2026-5177 · Note
• https://notion.so/setWiFiAclRules-A3300R-2108aff2dc8b80348d94e7fd1378d475 · Note
• https://twitter.com/CVEnew/status/2038916036880474488 · Twitter Post
• https://vuldb.com/submit/779145 · Note
• https://vuldb.com/vuln/354245 · Note
• https://vuldb.com/vuln/354244/cti · Note