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.

Metrics

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact High

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

Access Vector Network

Access Complexity Low

Authentication Single

Confidentiality Impact Complete

Integrity Impact Complete

Availability Impact Complete

This CVE is not in the KEV list.

Exploitation poc

Automatable no

Technical Impact partial

Affected Vendors & Products

Vendors Products
Totolink
  • A3300r
  • A3300r Firmware

Configuration 1 [-]

AND
cpe:2.3:o:totolink:a3300r_firmware:17.0.0cu.557_b20221024:*:*:*:*:*:*:*
cpe:2.3:h:totolink:a3300r:-:*:*:*:*:*:*:*

No data.

References
Link Providers
https://github.com/noahze01/IoT-vulnerable/blob/main/TOTOLink/A3300R/setScheduleCfg.md cve-icon cve-icon
https://vuldb.com/?ctiid.329930 cve-icon cve-icon
https://vuldb.com/?id.329930 cve-icon cve-icon
https://vuldb.com/?submit.673726 cve-icon cve-icon
https://www.totolink.net/ cve-icon cve-icon
History

Tue, 28 Oct 2025 02:15:00 +0000

Type Values Removed Values Added
First Time appeared Totolink a3300r Firmware
CPEs cpe:2.3:h:totolink:a3300r:-:*:*:*:*:*:*:*
cpe:2.3:o:totolink:a3300r_firmware:17.0.0cu.557_b20221024:*:*:*:*:*:*:*
Vendors & Products Totolink a3300r Firmware

Mon, 27 Oct 2025 22:30:00 +0000

Type Values Removed Values Added
First Time appeared Totolink
Totolink a3300r
Vendors & Products Totolink
Totolink a3300r

Mon, 27 Oct 2025 21:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Mon, 27 Oct 2025 10:15:00 +0000

Type Values Removed Values Added
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.
Title TOTOLINK A3300R POST Parameter cstecgi.cgi setScheduleCfg stack-based overflow
Weaknesses CWE-119
CWE-121
References
Metrics cvssV2_0

{'score': 9, 'vector': 'AV:N/AC:L/Au:S/C:C/I:C/A:C/E:POC/RL:ND/RC:UR'}

cvssV3_0

{'score': 8.8, 'vector': 'CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R'}

cvssV3_1

{'score': 8.8, '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'}

cvssV4_0

{'score': 8.7, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P'}
cve-icon MITRE

Status: PUBLISHED

Assigner: VulDB

Published: 2025-10-27T10:02:08.097Z

Updated: 2025-10-27T20:13:39.307Z

Reserved: 2025-10-26T05:37:41.692Z

Link: CVE-2025-12259

cve-icon Vulnrichment

Updated: 2025-10-27T20:13:36.446Z

cve-icon NVD

Status : Analyzed

Published: 2025-10-27T10:15:38.610

Modified: 2025-10-28T02:10:25.910

Link: CVE-2025-12259

cve-icon Redhat

No data.