CVE-2020-28929

Name: CVE-2020-28929
Creator: NVD / NIST
Published: 2020-12-16T21:15:12.887+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 1.23%

Last modified Jun 17, 2026

CVE-2020-28929 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. Unrestricted access to the log downloader functionality in EPSON EPS TSE Server 8 (21.0.11) allows an unauthenticated attacker to remotely retrieve administrative hashed credentials via the maintenance/troubleshoot.php?download=1 URI.. EPSS estimates a 1.23% chance of exploitation in the next 30 days.

Description

Unrestricted access to the log downloader functionality in EPSON EPS TSE Server 8 (21.0.11) allows an unauthenticated attacker to remotely retrieve administrative hashed credentials via the maintenance/troubleshoot.php?download=1 URI.

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

1.23%

65.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-306

Affected Software

Vendor	Product	Versions
Epson	Eps Tse Server 8 Firmware	21.0.11

References

https://blog.bssi.fr/multiple-vulnerabilities-within-epson-eps-tse-server-8/#vulnerability-1Exploit, Third Party Advisory
https://blog.bssi.fr/multiple-vulnerabilities-within-epson-eps-tse-server-8/#vulnerability-1Exploit, Third Party Advisory

Timeline

Published: Dec 16, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-28929?

How severe is CVE-2020-28929?

CVE-2020-28929 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 1.23% probability of exploitation in the next 30 days.

How do I fix CVE-2020-28929?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-28929?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST