What is the CVSS score of CVE-2025-7417?

CVE-2025-7417 has a CVSS 3.1 base score of 8.8 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.4%.

Which versions of O3 Firmware are affected by CVE-2025-7417?

A critical remote code execution vulnerability affects Tenda O3V2 routers (version 1.0.0.12), allowing unauthenticated attackers to execute arbitrary code through a stack buffer overflow.

Is there a public PoC exploit available for CVE-2025-7417?

Yes, a public proof-of-concept exploit is available for CVE-2025-7417. Prioritise patching immediately. EPSS: 0.4%.

How to fix or mitigate CVE-2025-7417?

Within 24 hours: Inventory all Tenda O3V2 devices in production and isolate any instances from critical network segments; disable remote management features if possible. Within 7 days: Implement network-based protections (WAF/IPS rules blocking malformed ping requests to /goform/setPingInfo); consider replacing affected devices with patched alternatives or verified secure models. Within 30 days: Complete device replacement program or apply vendor patch immediately upon release; conduct network forensics to detect any prior exploitation attempts.

O3 Firmware CVE-2025-7417

EUVD-2025-21073 HIGH

Buffer Overflow (CWE-119)

2025-07-10 cna@vuldb.com

Buffer Overflow O3 Firmware Tenda

8.8

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

8.8 HIGH

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

EUVD ID Assigned

Mar 16, 2026 - 06:52 euvd

EUVD-2025-21073

Analysis Generated

Mar 16, 2026 - 06:52 vuln.today

PoC Detected

Jul 16, 2025 - 16:41 vuln.today

Public exploit code

CVE Published

Jul 10, 2025 - 22:15 nvd

HIGH 8.8

DescriptionCVE.org

A vulnerability has been found in Tenda O3V2 1.0.0.12(3880) and classified as critical. Affected by this vulnerability is the function fromNetToolGet of the file /goform/setPingInfo of the component httpd. The manipulation of the argument ip leads to stack-based buffer overflow. The attack can be launched remotely. The exploit has been disclosed to the public and may be used.

AnalysisAI

CVE-2025-7417 is a critical stack-based buffer overflow vulnerability in Tenda O3V2 router firmware (version 1.0.0.12(3880)) affecting the /goform/setPingInfo endpoint. An authenticated attacker can exploit improper input validation on the 'ip' parameter to achieve remote code execution with high impact on confidentiality, integrity, and availability. A public proof-of-concept exploit exists, and the vulnerability is actively exploitable in real-world environments.

Technical ContextAI

The vulnerability exists in the httpd web service component of Tenda O3V2 routers, specifically in the fromNetToolGet function that processes ping utility requests via the /goform/setPingInfo handler. The root cause is CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer), where user-supplied input from the 'ip' parameter is copied into a fixed-size stack buffer without proper length validation. This classic stack-based buffer overflow allows an attacker to overwrite the stack, potentially corrupting return addresses and enabling arbitrary code execution. The affected CPE is likely 'cpe:2.3:o:tenda:o3v2_firmware:1.0.0.12(3880):*:*:*:*:*:*:*'. The vulnerability resides in network-accessible HTTP handling code that processes what appears to be a network diagnostics feature (ping functionality).