CVE-2025-57528Public exploitNetwork attack vector

Router crash via HTTP parameter stack overflow

Published Sep 19, 2025 · Updated Sep 19, 2025

Stack overflow in Tenda AC6 firmware 15.03.05.16_multi allows remote attackers to crash the router through crafted SetCfm HTTP parameters. The formSetCfm handler in httpd allows the funcname, funcpara1, and funcpara2 inputs to overrun stack storage. Exploitation requires no privileges or user interaction; the CVE reports service interruption, while the proof author also claims code execution.

CVSS severity7.7
High
EPSS probability0.44%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

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Summary

What happened

Stack overflow in Tenda AC6 firmware 15.03.05.16_multi allows remote attackers to crash the router through crafted SetCfm HTTP parameters. The formSetCfm handler in httpd allows the funcname, funcpara1, and funcpara2 inputs to overrun stack storage. Exploitation requires no privileges or user interaction; the CVE reports service interruption, while the proof author also claims code execution.

The record

CVE
CVE-2025-57528
Published
Sep 19, 2025
Updated
Sep 19, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-20, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 19, 2025CVE publishedPublication date reported by the CVE source.
  2. Sep 19, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.7CISA-ADPCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-20Improper Input Validation
T1499.004Application or System Exploitation Flood

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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