Vulnerability · Published Jun 9, 2025 · Assigned by VulDB
CVE-2025-5902TOTOLINK T10 POST Request cstecgi.cgi setUpgradeFW 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 6.5% (higher than 94% of all known vulnerabilities).
Severity (CVSS 3.1)8.8High
Exploit odds (30 days)6.5%top 6.2% 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 and classified as critical. This issue affects the function setUpgradeFW of the file /cgi-bin/cstecgi.cgi of the component POST Request Handler. The manipulation of the argument slaveIpList leads to buffer overflow. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used.
Affected products (as reported)
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-311675 | TOTOLINK T10 POST Request cstecgi.cgi setUpgradeFW buffer overflow vdb-entry, technical-description
- VDB-311675 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
- Submit #592246 | TOTOLINK T10 V2_Firmware V2_V4.1.8cu.5207 Buffer Overflow third-party-advisory
- https://candle-throne-f75.notion.site/TOTOLINK-T10-setUpgradeFW-20bdf0aa11858089bc28f634bb140d00 exploit, patch
- https://www.totolink.net/ product