CVE-2025-30256: tenda ac6_firmware

Modified

Published 20-08-2025Last modified 03-11-2025

Vulnerability summary

CVE-2025-30256 is a high (CVSS 8.6) vulnerability in tenda ac6_firmware. EPSS estimates a 0.39% chance of exploitation in the next 30 days, higher than 32.3% of scored vulnerabilities.

Overall risk

34/100

0100

Medium · default modelHow is this calculated?

CVSS score

8.6/10

010

High · v3.1 (CVE.org)

EPSS score

0.39%

0%100%

Low · 0.00 pp in 30 days

KEVNot listedNot listed by any tracked catalog.

RansomwareNot flaggedNo ransomware use recorded.

Public exploits0No public exploits recorded

Timeline

20-08-2025
PublishedVulnerability first disclosed.
03-11-2025
Last modifiedVulnerability information updated.

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 metrics

2 scores · 2 sources · 1 version

v3.18.6

EPSS trend

Probability

0.39%

Chance of exploitation in the next 30 days

Percentile

32%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.39% on 22-09-2026

22-09-202622-10-2026

Known exploited

Compare KEV catalogs

CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

CWE-772Missing Release of Resource after Effective LifetimeThe product does not release a resource after its effective lifetime has ended, i.e., after the resource is no longer needed.

Affected systems

Tenda2 products

ac6_firmware02.03.01.110
ac6 v5.0V02.03.01.110

1 vendor · 2 products

References

2 links