CVE-2025-12259 — HIGH (8.8)

Vulnerability Description

A flaw has been found in TOTOLINK A3300R 17.0.0cu.557_B20221024. The affected element is the function setScheduleCfg of the file /cgi-bin/cstecgi.cgi of the component POST Parameter Handler. This manipulation of the argument recHour causes stack-based buffer overflow. It is possible to initiate the attack remotely. The exploit has been published and may be used.

CVSS Score

8.8

HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Totolink	A3300R Firmware	17.0.0cu.557_b20221024
Totolink	A3300R	-

Related Weaknesses (CWE)

CWE-121 CWE-119

References

https://github.com/noahze01/IoT-vulnerable/blob/main/TOTOLink/A3300R/setScheduleExploitThird Party Advisory
https://vuldb.com/?ctiid.329930Permissions RequiredVDB Entry
https://vuldb.com/?id.329930Third Party AdvisoryVDB Entry
https://vuldb.com/?submit.673726Third Party AdvisoryVDB Entry
https://www.totolink.net/Product

FAQ

What is CVE-2025-12259?

CVE-2025-12259 is a vulnerability with a CVSS score of 8.8 (HIGH). A flaw has been found in TOTOLINK A3300R 17.0.0cu.557_B20221024. The affected element is the function setScheduleCfg of the file /cgi-bin/cstecgi.cgi of the component POST Parameter Handler. This mani...

How severe is CVE-2025-12259?

CVE-2025-12259 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2025-12259?

Check the references section above for vendor advisories and patch information. Affected products include: Totolink A3300R Firmware, Totolink A3300R.