What is the CVSS score of CVE-2025-25456?

CVE-2025-25456 has a CVSS 3.1 base score of 9.8 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.4%.

Which versions of Ac10 Firmware are affected by CVE-2025-25456?

Organizations using Tenda AC10 V4.0si_V16.03.10.20 face critical risk from CVE-2025-25456, a buffer overflow vulnerability rated CVSS 9.8.

Is there a public PoC exploit available for CVE-2025-25456?

Yes, a public proof-of-concept exploit is available for CVE-2025-25456. Prioritise patching immediately. EPSS: 0.4%.

How to fix or mitigate CVE-2025-25456?

Within 24 hours: Identify all affected systems and apply vendor patches immediately. If patching is delayed, consider network segmentation to limit exposure.

Ac10 Firmware CVE-2025-25456

CRITICAL

Classic Buffer Overflow (CWE-120)

2025-04-15 cve@mitre.org

Buffer Overflow Tenda Ac10 Firmware

9.8

CVSS 3.1

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 18:36 vuln.today

PoC Detected

Apr 22, 2025 - 16:43 vuln.today

Public exploit code

CVE Published

Apr 15, 2025 - 19:16 nvd

CRITICAL 9.8

DescriptionNVD

Tenda AC10 V4.0si_V16.03.10.20 is vulnerable to Buffer Overflow in AdvSetMacMtuWan via mac2.

AnalysisAI

Tenda AC10 V4.0si_V16.03.10.20 is vulnerable to Buffer Overflow in AdvSetMacMtuWan via mac2. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified as Buffer Copy without Size Check (CWE-120), which allows attackers to overflow a buffer to corrupt adjacent memory. Tenda AC10 V4.0si_V16.03.10.20 is vulnerable to Buffer Overflow in AdvSetMacMtuWan via mac2. Affected products include: Tenda Ac10 Firmware.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Always validate buffer sizes before copy operations. Use bounded functions (strncpy, snprintf). Enable compiler protections.

CVE-2025-25456 vulnerability details – vuln.today

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Ac10 Firmware CVE-2025-25456

CVSS VectorNVD

Lifecycle Timeline

DescriptionNVD

AnalysisAI

Technical ContextAI

RemediationAI

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External POC / Exploit Code