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VAR-202510-2269

Vulnerability from variot - Updated: 2025-11-19 23:14

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. The TOTOLINK A3300R is a dual-band wireless router manufactured by TOTOLINK Electronics Co., Ltd. in China, primarily used in home and small network environments. Attackers can exploit this vulnerability to execute arbitrary code on the system or cause a denial-of-service attack

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CVE-2025-12259 (GCVE-0-2025-12259)

Vulnerability from cvelistv5 – Published: 2025-10-27 10:02 – Updated: 2026-02-24 07:09

Title

TOTOLINK A3300R POST Parameter cstecgi.cgi setScheduleCfg stack-based overflow

Summary

Severity

8.7 (High)


                        
                          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

8.8 (High)


                        
                          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

8.8 (High)


                        
                          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

SSVC

Exploitation: poc Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-10-27 20:13 UTC

CWE

CWE-121 - Stack-based Buffer Overflow
CWE-119 - Memory Corruption

Assigner

VulDB mitre root Scorecard

References

5 references

URL	Tags
https://vuldb.com/?id.329930	vdb-entrytechnical-description
https://vuldb.com/?ctiid.329930	signaturepermissions-required
https://vuldb.com/?submit.673726	third-party-advisory
https://github.com/noahze01/IoT-vulnerable/blob/m…	exploit
https://www.totolink.net/	product

Impacted products

1 product

Vendor	Product	Version
TOTOLINK	A3300R	Affected: 17.0.0cu.557_B20221024 cpe:2.3:o:totolink:a3300r_firmware::::::::

Credits

yhryhryhr_ (VulDB User)

Show details on NVD website

JSON

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    "dateUpdated": "2026-02-24T07:09:56.813Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

VAR-202510-2269

CVE-2025-12259 (GCVE-0-2025-12259)

Tags

Sightings

Nomenclature

Related by attack behaviour