CVE-2025-4834: TOTOLINK A702R/A3002R/A3002RU HTTP POST Request formSetLg buffer overflow

Severity: high (CVSS 8.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.9% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-05-17 · updated 2026-06-17
Weakness: CWE-119

Description

A vulnerability was found in TOTOLINK A702R, A3002R and A3002RU 3.0.0-B20230809.1615. It has been classified as critical. Affected is an unknown function of the file /boafrm/formSetLg of the component HTTP POST Request Handler. The manipulation of the argument submit-url 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

TOTOLINK A3002R: 3.0.0-b20230809.1615
TOTOLINK A3002RU: 3.0.0-b20230809.1615
TOTOLINK A702R: 3.0.0-b20230809.1615

References

https://github.com/CH13hh/tmp_store_cc/blob/main/toto/12.md
https://vuldb.com/?ctiid.309300
https://vuldb.com/?id.309300
https://vuldb.com/?submit.574607
https://www.totolink.net/

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