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Vulnerability record · CVE-2025-66635 · published 16 December 2025

CVE-2025-66635: Stack-based buffer overflow vulnerability

Stack-based buffer overflow vulnerability exists in SEIKO EPSON Web Config. Specially crafted data input by a logged-in user may execute arbitrary code. As for the details of the affected products and versions, see the information provided by the vendor under [References].

8.6 CVSS 4.0 High EPSS 0.53% · top 57.2% CWE-121 · Stack-based buffer overflow Deferred
8.6CVSS 4.0 base score
0.53%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
3References
17 Jun 2026Last modified by NVD

Description

Stack-based buffer overflow vulnerability exists in SEIKO EPSON Web Config. Specially crafted data input by a logged-in user may execute arbitrary code. As for the details of the affected products and versions, see the information provided by the vendor under [References].

CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

References

LinkTags
https://epson.com/Support/wa00971
https://jvn.jp/en/jp/JVN51846148/
https://www.epson.jp/support/misc_t/251216_oshirase.htm

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Source: NIST National Vulnerability Database (record CVE-2025-66635), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.