CVE-2025-28221

HIGH

7.5

CVSS Score

Published: March 28, 2025 at 12:00 AM UTC

Updated: June 17, 2026 at 09:04 AM UTC

2 products affected across 1 vendorW6-s FirmwareW6-S

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Severity

HIGH7.5

Exploit prediction

EPSS 0.5%

SSVC

No known exploit

Description

Tenda W6_S v1.0.0.4_510 has a Buffer Overflow vulnerability in the set_local_time function, which allows remote attackers to cause web server crash via parameter time passed to the binary through a POST request.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

W6-s Firmware · Tenda

95%

1.0.0.4(510)

tenda-w6-s (same device)

W6-S · Tendadevice

80%

All versions

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

Broken Link

Source: [email protected]

https://github.com/IdaJea/IOT_vuln_1/blob/master/w6_s_v1.0.0.4/time.pdf

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.5HIGHCISA-ADP

Attack Vector: NETWORK
Complexity: LOW
Privileges: NONE
User Interaction: NONE
Scope: UNCHANGED
Confidentiality: NONE
Integrity: NONE
Availability: HIGH

Vector?

Quick Info

StatusANALYZED

CWE

CWE-120

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