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Ac8 Firmware CVE-2025-25664

CRITICAL
Out-of-bounds Write (CWE-787)
2025-02-20 cve@mitre.org
Memory Corruption Tenda Buffer Overflow Ac8 Firmware
9.8
CVSS 3.1 · NVD
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Severity by source

NVD PRIMARY
9.8 CRITICAL
AV:N/AC:L/PR:N/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:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

3
Analysis Generated
Mar 28, 2026 - 18:27 vuln.today
PoC Detected
Mar 17, 2025 - 15:19 vuln.today
Public exploit code
CVE Published
Feb 20, 2025 - 23:15 nvd
CRITICAL 9.8

DescriptionCVE.org

Tenda AC8V4 V16.03.34.06 was discovered to contain a stack overflow via the shareSpeed parameter in the sub_49E098 function.

AnalysisAI

Tenda AC8V4 V16.03.34.06 was discovered to contain a stack overflow via the shareSpeed parameter in the sub_49E098 function. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified as Out-of-bounds Write (CWE-787), which allows attackers to write data beyond allocated buffer boundaries leading to code execution or crashes. Tenda AC8V4 V16.03.34.06 was discovered to contain a stack overflow via the shareSpeed parameter in the sub_49E098 function. Affected products include: Tenda Ac8 Firmware.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Validate write boundaries, use memory-safe languages, enable compiler protections (ASLR, stack canaries).

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CVE-2025-25664 vulnerability details – vuln.today
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