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Ac9 Firmware CVE-2024-25753

HIGH
Stack-based Buffer Overflow (CWE-121)
2024-02-22 cve@mitre.org
8.8
CVSS 3.1 · Vendor: mitre
View

Vulnerability Assessment

Weakness
CWE
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.

Impact

CVSS score of 8.8 (HIGH). Attack characteristics: adjacent network attack vector, low complexity, no privileges required, no user interaction not required.

Exploit ScenarioDerived

Successful exploitation could compromise the high-severity affected system.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
No patch listed yet 0.6% exploitation probability (EPSS)

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AnalysisAI

Stack Based Buffer Overflow vulnerability in Tenda AC9 v.3.0 with firmware version v.15.03.06.42_multi allows a remote attacker to execute arbitrary code via the formSetDeviceName function. Rated high severity (CVSS 8.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

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.

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

This vulnerability is classified under CWE-121. Stack Based Buffer Overflow vulnerability in Tenda AC9 v.3.0 with firmware version v.15.03.06.42_multi allows a remote attacker to execute arbitrary code via the formSetDeviceName function. Affected products include: Tenda Ac9 Firmware.

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

Vendor (mitre) PRIMARY 8.8 HIGH
AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Primary rating from Vendor (mitre) · only source for this CVE.

CVSS VectorVendor: mitre

Attack Vector
Adjacent
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

DescriptionCVE.org

Stack Based Buffer Overflow vulnerability in Tenda AC9 v.3.0 with firmware version v.15.03.06.42_multi allows a remote attacker to execute arbitrary code via the formSetDeviceName function.

Threat Intelligence Overview

EPSS Score
0.6%
Top 54% exploitable
Data Quality
3 sources
Confidence: Low

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 No
EPSS 0.6%
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
Scheduled
Exploitation· derived
None
System Exposure· derived
Controlled
Automatable· derived
No
Human Impact· derived
Medium

Priority Score

45
Low Medium High Critical
KEV: 0
EPSS: +1
CVSS: +44
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

A buffer overflow occurs when a program writes more data to a memory buffer than it was allocated to hold, causing the excess data to spill into adjacent memory regions.

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.

Remote Code Execution represents the critical moment when an attacker successfully runs arbitrary code on a target system without physical access.

Affected Products (CPE)CVE.org

cpe:2.3:o:tenda:ac9_firmware:5.03.06.42_multi:*:*:*:*:*:*:*
CVE-2025-45042 CRITICAL POC
9.8 May 05

Tenda AC9 v15.03.05.14 was discovered to contain a command injection vulnerability via the Telnet function. Rated critic

CVE-2025-29384 CRITICAL POC
9.8 Mar 14

In Tenda AC9 v1.0 V15.03.05.14_multi, the wanMTU parameter of /goform/AdvSetMacMtuWan has a stack overflow vulnerability

CVE-2025-44877 CRITICAL POC
9.8 May 02

Tenda AC9 V15.03.06.42_multi was found to contain a command injection vulnerability in the formSetSambaConf function via

CVE-2025-44872 CRITICAL POC
9.8 May 02

Tenda AC9 V15.03.06.42_multi was found to contain a command injection vulnerability in the formsetUsbUnload function via

CVE-2025-45429 CRITICAL POC
9.8 Apr 23

In the Tenda ac9 v1.0 router with firmware V15.03.05.14_multi, there is a stack overflow vulnerability in /goform/WifiWp

CVE-2025-45428 CRITICAL POC
9.8 Apr 23

In Tenda ac9 v1.0 with firmware V15.03.05.14_multi, the rebootTime parameter of /goform/SetSysAutoRebbotCfg has a stack

CVE-2025-45427 CRITICAL POC
9.8 Apr 23

In Tenda AC9 v1.0 with firmware V15.03.05.14_multi, the security parameter of /goform/WifiBasicSet has a stack overflow

CVE-2025-29386 CRITICAL POC
9.8 Mar 14

In Tenda AC9 v1.0 V15.03.05.14_multi, the mac parameter of /goform/AdvSetMacMtuWan has a stack overflow vulnerability, w

CVE-2025-29385 CRITICAL POC
9.8 Mar 14

In Tenda AC9 v1.0 V15.03.05.14_multi, the cloneType parameter of /goform/AdvSetMacMtuWan has a stack overflow vulnerabil

CVE-2024-42634 CRITICAL POC
9.8 Aug 16

A Command Injection vulnerability exists in formWriteFacMac of the httpd binary in Tenda AC9 v15.03.06.42. Rated critica

CVE-2024-24543 CRITICAL POC
9.8 Feb 05

Buffer Overflow vulnerability in the function setSchedWifi in Tenda AC9 v.3.0, firmware version v.15.03.06.42_multi allo

CVE-2023-40942 CRITICAL POC
9.8 Sep 07

Tenda AC9 V3.0BR_V15.03.06.42_multi_TD01 was discovered stack overflow via parameter 'firewall_value' at url /goform/Set

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