What is the CVSS score of CVE-2025-44899?

CVE-2025-44899 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 Rx3 Firmware are affected by CVE-2025-44899?

Organizations using Tenda RX3 face critical risk from CVE-2025-44899, a stack-based buffer overflow vulnerability rated CVSS 9.8.

How to fix or mitigate CVE-2025-44899?

Within 24 hours: Identify all affected systems running Tenda RX3 and apply vendor patches immediately. If patching is delayed, consider network segmentation to limit exposure.

Rx3 Firmware CVE-2025-44899

CRITICAL

Stack-based Buffer Overflow (CWE-121)

2025-05-06 cve@mitre.org

Tenda Buffer Overflow Stack Overflow Rx3 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 - 18:40 vuln.today

CVE Published

May 06, 2025 - 21:16 nvd

CRITICAL 9.8

DescriptionCVE.org

AnalysisAI

There is a stack overflow vulnerability in Tenda RX3 V1.0br_V16.03.13.11 In the fromSetWifiGusetBasic function of the web url /goform/ WifiGuestSet, the manipulation of the parameter shareSpeed leads. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Technical ContextAI

This vulnerability is classified under CWE-121. There is a stack overflow vulnerability in Tenda RX3 V1.0br_V16.03.13.11 In the fromSetWifiGusetBasic function of the web url /goform/ WifiGuestSet, the manipulation of the parameter shareSpeed leads to stack overflow. Affected products include: Tenda Rx3 Firmware.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.