What is the CVSS score of CVE-2025-70252?

CVE-2025-70252 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%.

Is there a public PoC exploit available for CVE-2025-70252?

Yes, a public proof-of-concept exploit is available for CVE-2025-70252. Prioritise patching immediately. EPSS: 0.1%.

How to fix or mitigate CVE-2025-70252?

Within 24 hours: Identify and inventory all Tenda AC6V2.0 devices running firmware V15.03.06.23_multi across the organization; disable WPS functionality on all affected devices immediately via administrative interfaces. Within 7 days: Evaluate network segmentation to isolate affected routers from critical systems; implement network access controls to restrict WPS-related traffic; document findings and mitigation status. Within 30 days: Monitor Tenda security advisories for patch availability; develop a device replacement or upgrade strategy; conduct network access audits to detect any unauthorized access attempts during the vulnerability window.

Ac6 Firmware CVE-2025-70252

HIGH

Stack-based Buffer Overflow (CWE-121)

2026-03-02 cve@mitre.org

Stack Overflow Tenda Ac6 Firmware

7.5

CVSS 3.1 · NVD

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Vulnerability Assessment

Weakness	CWE CWE-121 OWASP Top 10:2025 A06:2021 - Vulnerable and Outdated Components ASVS 5.0 V15 - Secure Coding and Architecture Stack buffer bounds checking MITRE ATT&CK 1 technique across 1 tactic: Execution The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. Sign in to read
Impact	CVSS 7.5 (HIGH). Attack vector: Network. Complexity: Low. Privileges required: None. User interaction: None. Public exploit/POC available.
Exploit ScenarioDerived	An attacker could exploit this flaw, a stack overflow vulnerability.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).

No patch listed yet 0.1% exploitation probability (EPSS)

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AnalysisAIv1 – Mar 12, 2026

An issue was discovered in /goform/WifiWpsStart in Tenda AC6V2.0 V15.03.06.23_multi. The index and mode are controllable. [CVSS 7.5 HIGH]

RemediationAI

Monitor vendor advisories for a patch. Restrict network access to the affected service where possible.

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

Classified as CWE-121 (Stack-based Buffer Overflow). Affects Ac6 Firmware. An issue was discovered in /goform/WifiWpsStart in Tenda AC6V2.0 V15.03.06.23_multi. The index and mode are controllable. If the conditions are met to sprintf, they will be spliced into tmp. It is worth noting that there is no size check,which leads to a stack overflow vulnerability.

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Exploit and PoC references, threat intelligence from 22 sources

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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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Lifecycle Timeline

PoC Detected

Mar 06, 2026 - 21:04 vuln.today

Public exploit code

CVE Published

Mar 02, 2026 - 17:16 nvd

HIGH 7.5

DescriptionCVE.org

An issue was discovered in /goform/WifiWpsStart in Tenda AC6V2.0 V15.03.06.23_multi. The index and mode are controllable. If the conditions are met to sprintf, they will be spliced into tmp. It is worth noting that there is no size check,which leads to a stack overflow vulnerability.

Executive ViewAI

Why It Matters

A high-severity vulnerability in Tenda AC6V2.0 wireless routers allows remote attackers to manipulate WiFi Protected Setup (WPS) functions through uncontrolled parameters, potentially leading to unauthorized network access or device compromise. Organizations using affected Tenda routers face immediate risk of network infiltration, especially concerning if these devices protect critical infrastructure or sensitive data.

Business Impact: High

Compensating Controls

Disable WPS feature entirely on affected Tenda AC6V2.0 devices through administrative configuration; implement network segmentation to isolate routers from critical systems; restrict administrative access to router interfaces via firewall rules; monitor router logs for suspicious WPS-related activity; consider deploying wireless intrusion detection systems (WIDS) to detect exploitation attempts; implement network access controls (802.1X, MAC filtering) as secondary authentication; evaluate temporary device replacement with alternative vendors until patches become available.

Threat Intelligence Overview

EPSS Score

0.1%

Top 85% exploitable

Exploit

POC

Public exploit code exists

Data Quality

4 sources

Confidence: Medium

NVD

CVE.org

EPSS

GitHub

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue

Severity HIGH

CISA KEV No

Public POC Yes

EPSS 0.1%

Patch available No

Active threat No

Deciding rule

HIGH severity (CVSS 7.0-8.9)

What every action level means

Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.

Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.

This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.

This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.

Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived

Out-of-Cycle

Exploitation· derived

Poc

System Exposure· derived

Open

Automatable· derived

Yes

Human Impact

High

Priority Score

Low Medium High Critical

KEV: 0

EPSS: 0

CVSS: +38

PoC: +20

Weaponized: 0

Threat intel: 0

Gov advisory: 0

Attack Technique

Stack-based Buffer Overflow HIGH

A stack-based buffer overflow occurs when a program writes more data to a buffer located on the stack than it was allocated to hold.

Affected Products (CPE)CVE.org

cpe:2.3:o:tenda:ac6_firmware:15.03.06.23_multi:*:*:*:*:*:*:*

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9.8 Nov 19

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9.8 Feb 12

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9.8 Mar 14

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9.8 Mar 14

Tenda AC6 v15.03.05.16 was discovered to contain a buffer overflow via the formWifiWpsOOB function. Rated critical sever

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9.8 Mar 14

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9.8 Aug 30

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CVE-2023-40846 CRITICAL Act Now POC

9.8 Aug 28

Tenda AC6 US_AC6V1.0BR_V15.03.05.16_multi_TD01.bin is vulnerable to Buffer Overflow via function sub_90998. Rated critic

CVE-2023-38937 CRITICAL Act Now POC

9.8 Aug 07

Tenda AC10 V1.0 V15.03.06.23, AC1206 V15.03.06.23, AC8 v4 V16.03.34.06, AC6 V2.0 V15.03.06.23, AC7 V1.0 V15.03.06.44, AC

CVE-2023-38936 CRITICAL Act Now POC

9.8 Aug 07

Tenda AC10 V1.0 V15.03.06.23, AC1206 V15.03.06.23, AC6 V2.0 V15.03.06.23, AC7 V1.0 V15.03.06.44, AC5 V1.0 V15.03.06.28,

CVE-2023-38933 CRITICAL Act Now POC

9.8 Aug 07

Tenda AC6 V2.0 V15.03.06.23, AC7 V1.0 V15.03.06.44, F1203 V2.0.1.6, AC5 V1.0 V15.03.06.28, FH1203 V2.0.1.6 and AC9 V3.0

CVE-2023-38931 CRITICAL Act Now POC

9.8 Aug 07

Tenda AC10 V1.0 V15.03.06.23, AC1206 V15.03.06.23, AC8 v4 V16.03.34.06, AC6 V2.0 V15.03.06.23, AC7 V1.0 V15.03.06.44, F1

CVE-2023-2923 CRITICAL Act Now POC

9.8 May 27

A vulnerability classified as critical was found in Tenda AC6 US_AC6V1.0BR_V15.03.05.19. Rated critical severity (CVSS 9

Same weakness CWE-121 – Stack-based Buffer Overflow

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9.3

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9.3

CVE-2013-10064 CRITICAL POC

9.3

CVE-2012-10023 MEDIUM POC

6.9

CVE-2012-10058 CRITICAL POC

10.0

CVE-2013-10068 CRITICAL POC

9.4

References

Advisories & patches

REF https://www.tenda.com.cn/material/show/2855

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