CVE-2025-44897Public exploitNetwork attack vector

Unauthenticated code execution via overlong TFTP address

Published May 20, 2025 · Updated May 21, 2025

Stack-based buffer overflow in PLANET WGS-804HPT firmware 1.305b241111 allows remote attackers to execute code via a crafted TFTP server address. Public disclosures identify the bytftp_srvip parameter in web_tool_upgradeManager_post as the overflow source but do not specify the exact unsafe copy operation or destination buffer size. Network access requires no credentials; successful exploitation can execute code or crash the device.

CVSS severity9.8
Critical
EPSS probability0.53%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stack-based buffer overflow in PLANET WGS-804HPT firmware 1.305b241111 allows remote attackers to execute code via a crafted TFTP server address. Public disclosures identify the bytftp_srvip parameter in web_tool_upgradeManager_post as the overflow source but do not specify the exact unsafe copy operation or destination buffer size. Network access requires no credentials; successful exploitation can execute code or crash the device.

The record

CVE
CVE-2025-44897
Published
May 20, 2025
Updated
May 21, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-121, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 20, 2025CVE publishedPublication date reported by the CVE source.
  2. May 21, 2025Record 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

9.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-121Stack-based Buffer Overflow
T1190Exploit Public-Facing Application

Public exploit references

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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