What is the CVSS score of CVE-2025-69700?

CVE-2025-69700 has a CVSS 3.1 base score of 7.5 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H. EPSS exploitation probability: 0.1%.

Which versions of Fh1203 Firmware are affected by CVE-2025-69700?

Tenda FH1203 V2.0.1.6 routers contain a remotely exploitable buffer overflow vulnerability with active public exploits available.

Is there a public PoC exploit available for CVE-2025-69700?

Yes, a public proof-of-concept exploit is available for CVE-2025-69700. Prioritise patching immediately. EPSS: 0.1%.

How to fix or mitigate CVE-2025-69700?

Within 24 hours: Inventory all Tenda FH1203 V2.0.1.6 devices across the organization and isolate affected units from production networks if feasible. Within 7 days: Implement network segmentation to restrict CGI handler access, deploy WAF rules blocking formSetClientPrio requests, and disable remote management features if not operationally critical. Within 30 days: Replace affected devices with patched models or alternative vendors, as patch availability remains uncertain.

Fh1203 Firmware CVE-2025-69700

HIGH

Stack-based Buffer Overflow (CWE-121)

2026-02-23 cve@mitre.org

Buffer Overflow Stack Overflow Fh1203 Firmware Tenda

7.5

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

7.5 HIGH

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Lifecycle Timeline

Analysis Generated

Mar 12, 2026 - 21:55 vuln.today

PoC Detected

Feb 24, 2026 - 20:37 vuln.today

Public exploit code

CVE Published

Feb 23, 2026 - 14:16 nvd

HIGH 7.5

DescriptionCVE.org

Tenda FH1203 V2.0.1.6 contains a stack-based buffer overflow vulnerability in the modify_add_client_prio function, which is reachable via the formSetClientPrio CGI handler.

AnalysisAI

Tenda FH1203 V2.0.1.6 contains a stack-based buffer overflow vulnerability in the modify_add_client_prio function, which is reachable via the formSetClientPrio CGI handler. [CVSS 7.5 HIGH]

Technical ContextAI

Classified as CWE-121 (Stack-based Buffer Overflow). Affects the modify_add_client_prio component of Fh1203 Firmware. Tenda FH1203 V2.0.1.6 contains a stack-based buffer overflow vulnerability in the modify_add_client_prio function, which is reachable via the formSetClientPrio CGI handler.

RemediationAI

Monitor vendor advisories for a patch. Enable ASLR, DEP/NX, and stack canaries where possible. Restrict network access to the affected service where possible.