Ac8 Firmware
CVE-2025-52054
MEDIUM
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A07:2025 - Authentication Failures
ASVS 5.0
V6 - Authentication Authentication mechanism validation
MITRE ATT&CK
2 techniques across 2 tactics: Defense Evasion, Initial Access The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
| Impact | CVSS score of 5.3 (MEDIUM). Attack characteristics: network attack vector, low complexity, no privileges required, no user interaction not required. Public proof-of-concept exploit code is available. EPSS exploitation probability: 0.09%. |
| Exploit ScenarioDerived | A remote attacker could bypass authentication mechanisms to gain unauthorized access by sending crafted requests to the affected application. No authentication is required to exploit this vulnerability. |
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Alert meAnalysisAIv1 – Mar 28, 2026
An issue was discovered in Tenda AC8 v4.0 AC1200 Dual-band Gigabit Wireless Router AC8v4.0 Firmware 16.03.33.05. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
RemediationAI
No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Implement multi-factor authentication, enforce strong password policies, use proven authentication frameworks.
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 as Improper Authentication (CWE-287), which allows attackers to bypass authentication mechanisms to gain unauthorized access. An issue was discovered in Tenda AC8 v4.0 AC1200 Dual-band Gigabit Wireless Router AC8v4.0 Firmware 16.03.33.05. The root password of the device is calculated with a static string and the last two octets of the MAC address of the device. This allows an unauthenticated attacker to authenticate with network services on the device. Affected products include: Tenda Ac8 Firmware.
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- Exploit and PoC references, threat intelligence from 22 sources
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Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Primary rating from Vendor (mitre) · only source for this CVE.
CVSS VectorVendor: mitre
Lifecycle Timeline
2DescriptionCVE.org
An issue was discovered in Tenda AC8 v4.0 AC1200 Dual-band Gigabit Wireless Router AC8v4.0 Firmware 16.03.33.05. The root password of the device is calculated with a static string and the last two octets of the MAC address of the device. This allows an unauthenticated attacker to authenticate with network services on the device.
Executive ViewAI
Organizations using Tenda AC8 should be aware of moderate risk from CVE-2025-52054, a improper authentication vulnerability rated CVSS 5.3. This could allow unauthorized access to protected resources. Proof-of-concept code is publicly available. Organizations should apply vendor updates when available and monitor for exploitation.
Apply vendor patch. If patching is delayed: restrict network access, enable MFA, monitor auth logs.
Threat Intelligence Overview
NVD
CVE.org
EPSS
VulDB
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.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications.
Affected Products (CPE)CVE.org
More in Ac8 Firmware
View allStack-based buffer overflow in the Tenda AC8V4 router (firmware V16.03.34.06) lets remote attackers corrupt memory by su
Vulnerability in Tenda AC8v4 .V16.03.34.09 due to sscanf and the last digit of s8 being overwritten with \x0. Rated crit
Tenda AC8V4 V16.03.34.06 was discovered to contain a stack overflow via the shareSpeed parameter in the sub_47D878 funct
Tenda AC8V4 V16.03.34.06 was discovered to contain a stack overflow via the urls parameter in the function get_parentCon
Tenda AC8V4 V16.03.34.06 was discovered to contain a stack overflow via the shareSpeed parameter in the sub_49E098 funct
A vulnerability was found in Tenda AC8V4 V16.03.34.06. Rated critical severity (CVSS 9.8), this vulnerability is remotel
Tenda AC8v4 V16.03.34.06 has a stack overflow vulnerability in the fromAdvSetMacMtuWan function. Rated critical severity
A vulnerability was found in Tenda AC8 16.03.34.06_cn_TDC01. Rated critical severity (CVSS 9.8), this vulnerability is r
Tenda AC8 v4 US_AC8V4.0si_V16.03.34.06_cn was discovered to contain a stack overflow via parameter list at /goform/SetNe
Tenda AC8 v4 US_AC8V4.0si_V16.03.34.06_cn was discovered to contain a stack overflow via parameter macFilterType and par
Tenda AC8 v4 US_AC8V4.0si_V16.03.34.06_cn was discovered to contain a stack overflow via parameter timeZone at /goform/S
Tenda AC8 v4 US_AC8V4.0si_V16.03.34.06_cn was discovered to contain a stack overflow via parameter mac at /goform/GetPar
GitHub PoC
Exploit-DB