How severe is CVE-2026-23767?

CVE-2026-23767 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-23767 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (36th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-23767?

CVE-2026-23767 primarily affects Epson Sb-h50 Firmware. In total, 24 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2026-23767?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

Does CVE-2026-23767 have an EU (EUVD) identifier?

Yes. CVE-2026-23767 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-9594.

When was CVE-2026-23767 published?

CVE-2026-23767 was published on 2026-03-05 and last updated on 2026-06-17.

CVE-2026-23767

CVE-2026-23767 is a critical-severity vulnerability in Epson Sb-h50 Firmware with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-306.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 0% (36th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-9594
Weakness: CWE-306
Affected product: Epson Sb-h50 Firmware
Published: 2026-03-05
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2026-23767?: 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.
How severe is CVE-2026-23767?: CVE-2026-23767 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-23767 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (36th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-23767?: CVE-2026-23767 primarily affects Epson Sb-h50 Firmware. In total, 24 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2026-23767?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2026-23767 have an EU (EUVD) identifier?: Yes. CVE-2026-23767 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-9594.
When was CVE-2026-23767 published?: CVE-2026-23767 was published on 2026-03-05 and last updated on 2026-06-17.

References

Affected products (24)

cpe:2.3:o:epson:sb-h50_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:epson:tm-h6000v_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:epson:tm-l100_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:epson:tm-m10_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:epson:tm-m30_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:epson:tm-m30ii_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:epson:tm-m30ii-h_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:epson:tm-m30ii-s_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:epson:tm-m30ii-sl_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:epson:tm-m30iii_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:epson:tm-m30iii-h_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:epson:tm-m55_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:epson:tm-p20ii_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:epson:tm-p80ii_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:epson:tm-p20_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:epson:tm-p60ii_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:epson:tm-p80_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:epson:tm-t20ii_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:epson:tm-t20iii_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:epson:tm-t88vi_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:epson:tm-t88vi-ihub_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:epson:tm-t88vii_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:epson:ub-r04_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:epson:ub-e04_firmware:-:*:*:*:*:*:*:*

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