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Ac9 Firmware CVE-2025-57638

HIGH
Heap-based Buffer Overflow (CWE-122)
2025-09-23 cve@mitre.org
Buffer Overflow Heap Overflow Tenda Ac9 Firmware
7.5
CVSS 3.1
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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

3
Analysis Generated
Mar 28, 2026 - 19:13 vuln.today
PoC Detected
Sep 25, 2025 - 16:09 vuln.today
Public exploit code
CVE Published
Sep 23, 2025 - 19:15 nvd
HIGH 7.5

DescriptionNVD

Buffer overflow vulnerability in Tenda AC9 1.0 via the user supplied sys.vendor configuration value.

AnalysisAI

Buffer overflow vulnerability in Tenda AC9 1.0 via the user supplied sys.vendor configuration value. Rated high severity (CVSS 7.5), 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 under CWE-122. Buffer overflow vulnerability in Tenda AC9 1.0 via the user supplied sys.vendor configuration value. Affected products include: Tenda Ac9 Firmware.

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.

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CVE-2025-57638 vulnerability details – vuln.today
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