What is the CVSS score of CVE-2025-29384?

CVE-2025-29384 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: 14.6%.

Which versions of Ac9 Firmware are affected by CVE-2025-29384?

Organizations using Tenda AC9 face critical risk from CVE-2025-29384, a out-of-bounds write vulnerability rated CVSS 9.8.

Is there a public PoC exploit available for CVE-2025-29384?

Yes, a public proof-of-concept exploit is available for CVE-2025-29384. Prioritise patching immediately. EPSS: 14.6%.

How to fix or mitigate CVE-2025-29384?

Within 24 hours: Identify all affected systems running Tenda AC9 and apply vendor patches immediately. If patching is delayed, consider network segmentation to limit exposure.

Ac9 Firmware CVE-2025-29384

CRITICAL

Out-of-bounds Write (CWE-787)

2025-03-14 cve@mitre.org

Memory Corruption Tenda Buffer Overflow RCE Ac9 Firmware

9.8

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

9.8 CRITICAL

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

Primary rating from NVD · only source for this CVE.

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 - 18:31 vuln.today

PoC Detected

Mar 19, 2025 - 19:15 vuln.today

Public exploit code

CVE Published

Mar 14, 2025 - 17:15 nvd

CRITICAL 9.8

DescriptionCVE.org

In Tenda AC9 v1.0 V15.03.05.14_multi, the wanMTU parameter of /goform/AdvSetMacMtuWan has a stack overflow vulnerability, which can lead to remote arbitrary code execution.

AnalysisAI

In Tenda AC9 v1.0 V15.03.05.14_multi, the wanMTU parameter of /goform/AdvSetMacMtuWan has a stack overflow vulnerability, which can lead to remote arbitrary code execution. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and EPSS exploitation probability 14.6%.

Technical ContextAI

This vulnerability is classified as Out-of-bounds Write (CWE-787), which allows attackers to write data beyond allocated buffer boundaries leading to code execution or crashes. In Tenda AC9 v1.0 V15.03.05.14_multi, the wanMTU parameter of /goform/AdvSetMacMtuWan has a stack overflow vulnerability, which can lead to remote arbitrary code execution. Affected products include: Tenda Ac9 Firmware.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Validate write boundaries, use memory-safe languages, enable compiler protections (ASLR, stack canaries).