CVE-2025-46035Network attack vector

Unauthenticated service crash via oversized schedule parameters

Published Jun 12, 2025 · Updated Jul 5, 2026

Buffer overflow in the openSchedWifi endpoint in Tenda AC6 15.03.05.16 allows remote attackers to crash the router via an HTTP GET request. The endpoint copies oversized schedStartTime and schedEndTime values without validating their lengths, overwriting fixed-size memory. The request requires no authentication; a successful overflow interrupts the device's routing service, with no established ability to modify data or execute code.

CVSS severity7.5
High
EPSS probability0.63%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Buffer overflow in the openSchedWifi endpoint in Tenda AC6 15.03.05.16 allows remote attackers to crash the router via an HTTP GET request. The endpoint copies oversized schedStartTime and schedEndTime values without validating their lengths, overwriting fixed-size memory. The request requires no authentication; a successful overflow interrupts the device's routing service, with no established ability to modify data or execute code.

The record

CVE
CVE-2025-46035
Published
Jun 12, 2025
Updated
Jul 5, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-120, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 12, 2025CVE publishedPublication date reported by the CVE source.
  2. Jul 5, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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