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CVE-2025-30256

Tenda Ac6 Firmware vulnerability

8.6 HIGHEPSS 0.39%
  1. Published20 Aug 2025

Description

A denial of service vulnerability exists in the HTTP Header Parsing functionality of Tenda AC6 V5.0 V02.03.01.110. A specially crafted series of HTTP requests can lead to a reboot. An attacker can send multiple network packets to trigger this vulnerability.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeChanged
ConfidentialityNone
IntegrityNone
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

Affected products

Tenda Ac6 Firmware02.03.01.110

Remediation

No fixed version is recorded in the NVD data. Check the vendor advisory for the latest guidance.

References

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Frequently asked

Is CVE-2025-30256 being actively exploited?

CVE-2025-30256 is not in the CISA KEV catalog. Its EPSS exploit probability is 0.39%.

How severe is CVE-2025-30256?

CVE-2025-30256 has a CVSS 3.1 base score of 8.6, rated high. EPSS estimates a 0.39% probability of exploitation.

Which products are affected by CVE-2025-30256?

Affected products include Tenda Ac6 Firmware.

How do I fix CVE-2025-30256?

Apply the vendor's patch or advisory guidance, then verify no affected versions remain across your devices.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2025-30256 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.