CVE-2019-20459Network attack vector

Configuration compromise via default SNMP community strings

Published Nov 7, 2024 · Updated Nov 4, 2025

Incorrect access control in the Epson Expression Home XP-255 20.08.FM10I8 SNMP agent allows remote attackers to read and alter settings. The agent accepts the public community for unrestricted reads and the epson community for writes to every changeable value. Network access to UDP port 515 is sufficient; exposed writes can replace DNS servers or permanently disable the network interface, while reads disclose device values.

CVSS severity8.4
High
EPSS probability0.26%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Incorrect access control in the Epson Expression Home XP-255 20.08.FM10I8 SNMP agent allows remote attackers to read and alter settings. The agent accepts the public community for unrestricted reads and the epson community for writes to every changeable value. Network access to UDP port 515 is sufficient; exposed writes can replace DNS servers or permanently disable the network interface, while reads disclose device values.

The record

CVE
CVE-2019-20459
Published
Nov 7, 2024
Updated
Nov 4, 2025
Vendor
Seiko Epson Corporation
Product
Epson Expression Home XP-255
Classifications
T1499
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 7, 2024CVE publishedPublication date reported by the CVE source.
  2. Nov 4, 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?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=20.08.fm10i8

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Seiko Epson Corporation · Epson Expression Home XP-255version=20.08.fm10i8

Published CVSS scores

8.4CISA-ADPCVSS:3.1/AV:L/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 exploitUnconfirmed

Weakness, pattern, technique

T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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