CVE-2023-38556

HIGH
7.5
CVSS Score
Published: August 2, 2023 at 07:19 AM UTC
Updated: June 17, 2026 at 06:10 AM UTC
25 products affected across 2 vendorsEp 801A FirmwarePm T990 FirmwarePa TCU1 Firmware

Using SEIKO EPSON printer Web Config by SEIKO EPSON CORPORATION?

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Severity
HIGH7.5
Exploit prediction
EPSS 0.9%
SSVC
No known exploit

Description

Improper input validation vulnerability in SEIKO EPSON printer Web Config allows a remote attacker to turned off the printer. [Note] Web Config is the software that allows users to check the status and change the settings of SEIKO EPSON printers via a web browser. Web Config is pre-installed in some printers provided by SEIKO EPSON CORPORATION. For the details of the affected product names/model numbers, refer to the information provided by the vendor.

Affected

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

All versions
epson-ep-801a (same device)
All versions
epson-ep-802a (same device)
All versions
epson-ep-901a (same device)
All versions
epson-ep-901f (same device)
All versions
epson-ep-902a (same device)
All versions
epson-pa-tcu1 (same device)
All versions
epson-pm-t960 (same device)
All versions
epson-pm-t990 (same device)
All versions
epson-px-201 (same device)
All versions
epson-px-502a (same device)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

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

CVSS

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

Quick Info

StatusMODIFIED
CWE
NVD-CWE-noinfo

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