Vulnerability · Published Jun 9, 2025 · Assigned by VulDB

CVE-2025-5903TOTOLINK T10 POST Request cstecgi.cgi setWiFiAclRules buffer overflow

High 8.8

In plain English

A high-severity buffer overflow in T10 from TOTOLINK. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 12.1% (higher than 96% of all known vulnerabilities).

Severity (CVSS 3.1)8.8High

Exploit odds (30 days)12.1%top 3.8% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

A vulnerability was found in TOTOLINK T10 4.1.8cu.5207. It has been classified as critical. Affected is the function setWiFiAclRules of the file /cgi-bin/cstecgi.cgi of the component POST Request Handler. The manipulation of the argument desc leads to buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used.

Affected products (as reported)

Vendor	Product	Versions
TOTOLINK	T10	4.1.8cu.5207

Weakness: CWE-120, CWE-119 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R

References

VDB-311676 | TOTOLINK T10 POST Request cstecgi.cgi setWiFiAclRules buffer overflow vdb-entry, technical-description
VDB-311676 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
Submit #592247 | TOTOLINK T10 V2_Firmware V2_V4.1.8cu.5207 Buffer Overflow third-party-advisory
https://candle-throne-f75.notion.site/TOTOLINK-T10-setWiFiAclRules-20bdf0aa118580399a8df6ba2a44c197 exploit
https://www.totolink.net/ product