Cyber Resilience

CVE-2025-46035

HighPublic PoC

Published: 12 June 2025

Published
12 June 2025
Modified
17 June 2025
KEV Added
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Patch
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CVSS Score v3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS Score 0.0032 55.7th percentile
Risk Priority 15 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2025-46035 is a high-severity Classic Buffer Overflow (CWE-120) vulnerability in Tenda Ac6 Firmware. Its CVSS base score is 7.5 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Application or System Exploitation (T1499.004); ranked in the top 44.3% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

EU & UK References

Vulnerability details

Buffer Overflow vulnerability in Tenda AC6 v.15.03.05.16 allows a remote attacker to cause a denial of service via the oversized schedStartTime and schedEndTime parameters in an unauthenticated HTTP GET request to the /goform/openSchedWifi endpoint

CWE(s)
CWE-120

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

T1499.004 Application or System Exploitation Impact
Adversaries may exploit software vulnerabilities that can cause an application or system to crash and deny availability to users.
attack.mitre.org →
Why these techniques?

Buffer overflow in unauthenticated HTTP endpoint enables remote denial of service via application exploitation, crashing the router's web service.

Affected Assets

tenda
ac6 firmware
15.03.05.16

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

SC-27 Platform-independent Applications
addresses: CWE-120

Platform-independent managed code eliminates the need for unchecked native buffer copies that are the root cause of classic buffer overflows.

References