CVE-2025-63152Public exploitNetwork attack vector

Router service interruption via unchecked stack copy

Published Nov 10, 2025 · Updated Nov 10, 2025

Stack-based buffer overflow in Tenda AX3 firmware 16.03.12.10_CN allows remote attackers to crash the router via a crafted request. The wlSetExternParameter function passes wpapsk_crypto through v18 to strcpy, which copies unchecked input into the 16-byte wpapsk_cryptovalue stack buffer. The request must pass the wpapsk check; the overflow crashes the router and persistently interrupts network service, with no reported confidentiality or integrity impact.

CVSS severity7.5
High
EPSS probability0.37%
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-based buffer overflow in Tenda AX3 firmware 16.03.12.10_CN allows remote attackers to crash the router via a crafted request. The wlSetExternParameter function passes wpapsk_crypto through v18 to strcpy, which copies unchecked input into the 16-byte wpapsk_cryptovalue stack buffer. The request must pass the wpapsk check; the overflow crashes the router and persistently interrupts network service, with no reported confidentiality or integrity impact.

The record

CVE
CVE-2025-63152
Published
Nov 10, 2025
Updated
Nov 10, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-121, T1499
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 10, 2025CVE publishedPublication date reported by the CVE source.
  2. Nov 10, 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

7.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

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-121Stack-based Buffer Overflow
T1499Endpoint Denial of Service

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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