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VAR-202510-0048

Vulnerability from variot - Updated: 2025-11-19 23:27

A security flaw has been discovered in Tenda AC18 15.03.05.19(6318). Affected by this issue is some unknown functionality of the file /goform/fast_setting_pppoe_set. Performing manipulation of the argument Username results in stack-based buffer overflow. The attack is possible to be carried out remotely. The exploit has been released to the public and may be exploited. The Tenda AC18 is a dual-band wireless router launched by Shenzhen Jixiang Tengda Technology Co., Ltd. in July 2016, primarily for villa and large-sized home users.

The Tenda AC18 suffers from a stack buffer overflow vulnerability. This vulnerability stems from a failure to properly validate the length of the input data in the parameter Username in the file /goform/fast_setting_pppoe_set. An attacker could exploit this vulnerability to execute arbitrary code on the system or cause a denial of service

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CVE-2025-11325 (GCVE-0-2025-11325)

Vulnerability from cvelistv5 – Published: 2025-10-06 07:02 – Updated: 2026-02-24 06:44

Title

Tenda AC18 fast_setting_pppoe_set stack-based overflow

Summary

A security flaw has been discovered in Tenda AC18 15.03.05.19(6318). Affected by this issue is some unknown functionality of the file /goform/fast_setting_pppoe_set. Performing a manipulation of the argument Username results in stack-based buffer overflow. The attack is possible to be carried out remotely. The exploit has been released to the public and may be used for attacks.

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: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-10-06 18:33 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.327208	vdb-entrytechnical-description
https://vuldb.com/?ctiid.327208	signaturepermissions-required
https://vuldb.com/?submit.664527	third-party-advisory
https://github.com/noahze01/IoT-vulnerable/blob/m…	exploit
https://www.tenda.com.cn/	product

Impacted products

1 product

Vendor	Product	Version
Tenda	AC18	Affected: 15.03.05.19(6318) cpe:2.3:o:tenda:ac18_firmware::::::::

Credits

yhryhryhr_miemie (VulDB User)

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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.

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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-202510-0048

CVE-2025-11325 (GCVE-0-2025-11325)

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