Ac5 Firmware CVE-2025-6886

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EUVD

EUVD-2025-28774 HIGH

Buffer Overflow (CWE-119)

2025-06-30 cna@vuldb.com

Buffer Overflow Tenda Ac5 Firmware

8.8

CVSS 3.1 · NVD

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Severity by source

NVD PRIMARY

8.8 HIGH

AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

4

EUVD ID Assigned

Mar 16, 2026 - 01:25 euvd

EUVD-2025-28774

Analysis Generated

Mar 16, 2026 - 01:25 vuln.today

PoC Detected

Jul 01, 2025 - 16:47 vuln.today

Public exploit code

CVE Published

Jun 30, 2025 - 05:15 nvd

HIGH 8.8

DescriptionCVE.org

A vulnerability has been found in Tenda AC5 15.03.06.47 and classified as critical. Affected by this vulnerability is an unknown functionality of the file /goform/openSchedWifi. The manipulation of the argument schedStartTime/schedEndTime leads to stack-based buffer overflow. The attack can be launched remotely. The exploit has been disclosed to the public and may be used.

Analysis

A vulnerability has been found in Tenda AC5 15.03.06.47 and classified as critical. Affected by this vulnerability is an unknown functionality of the file /goform/openSchedWifi. The manipulation of the argument schedStartTime/schedEndTime leads to stack-based buffer overflow. The attack can be launched remotely. The exploit has been disclosed to the public and may be used.

Technical ContextAI

A buffer overflow occurs when data written to a buffer exceeds its allocated size, potentially overwriting adjacent memory and corrupting program state.

RemediationAI

Use memory-safe languages or bounds-checked functions. Enable ASLR, DEP/NX, and stack canaries. Apply vendor patches promptly.

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CVE-2025-6886 vulnerability details – vuln.today

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