CVE-2026-23767: epson sb-h50_firmware
CVSS: 9.8v3.1CriticalAnalyzed
Published 05-03-2026Last modified 06-03-2026
Vulnerability summary
CVE-2026-23767 is a critical (CVSS 9.8) vulnerability in epson sb-h50_firmware. EPSS estimates a 0.46% chance of exploitation in the next 30 days, higher than 38.9% of scored vulnerabilities.
CVSS score
9.8/10
010
Critical · v3.1 (CVE.org)EPSS score
0.46%
0%100%
Low · +0.02 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 05-03-2026PublishedVulnerability first disclosed.
- 06-03-2026Last modifiedVulnerability information updated.
Description
ESC/POS, a printer control language designed by Seiko Epson Corporation, lacks mechanisms for user authentication and command authorization, does not provide controls to restrict sources or destinations of network communication, and transmits commands without encryption or integrity protection.
CVSS metrics
2 scores · 2 sources · 1 versionCritical 9.8Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HSourcesAll 2 agree
- NVDNIST9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
0.46%
Chance of exploitation in the next 30 days
Percentile
39%
Versus all other CVEs
30-day change
+0.02 pp
From 0.45% on 20-09-2026
20-09-202620-10-2026
EPSS score0.46%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Epson24 products
Seiko epson corporation1 product
- esc/posAll products implementing ESC/POS
2 vendors · 25 products
References
3 links- www.epson.jp/support/misc_t/260305_oshirase.htmVendor Advisory
- jvn.jp/en/ta/JVNTA97995322/Third Party Advisory