CVE-2025-5902: TOTOLINK T10 POST Request cstecgi.cgi setUpgradeFW buffer overflow

Severity: high (CVSS 8.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 6.1% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2025-06-09 · updated 2026-06-17
Weakness: CWE-119

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

TOTOLINK T10: 4.1.8cu.5207

References

https://candle-throne-f75.notion.site/TOTOLINK-T10-setUpgradeFW-20bdf0aa11858089bc28f634bb140d00
https://vuldb.com/?ctiid.311675
https://vuldb.com/?id.311675
https://vuldb.com/?submit.592246
https://www.totolink.net/
https://candle-throne-f75.notion.site/TOTOLINK-T10-setUpgradeFW-20bdf0aa11858089bc28f634bb140d00

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