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VulnerabilityPublished Updated

CVE-2025-30256: Denial of Service Vulnerability Exists

Source GCVE Database

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Authoritative record:CVE-2025-30256· High 8.6

Not known to be exploited · CVSS 8.6 High.

Data as of 30 Oct 2026, 01:57 UTC

CVSS 3.1 base score
8.6High
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CNA (talos)CVSS 3.18.6
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 20 Aug 2025

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 29 Oct 2026.

What to do

AI-suggested

Until a fix is available, network administrators should consider limiting exposure of the device's HTTP management interface to untrusted networks to reduce risk.

Description

A denial of service (DoS) vulnerability exists in the HTTP Header Parsing functionality of Tenda AC6 V5.0 V02.03.01.110. An attacker can send specially crafted HTTP requests that cause the device to reboot, disrupting service availability.

References

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