CVE-2023-40706

9.8 criticalEPSS 0.7%

Critical (9.8) in opto22 snap pac s1 firmware. EPSS 0.7% chance of exploitation in the next 30 days.

There is no limit on the number of login attempts in the web server for the SNAP PAC S1 Firmware version R10.3b. This could allow for a brute-force attack on the built-in web server login.

Severity

CVSS 3.1

9.8 critical

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

EPSS: 0.7% chance of exploitation in the next 30 days; higher than 51% of CVEs (scores of 2026-10-31)
CWE: CWE-307
Published: 2023-08-24
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

opto22:snap_pac_s1_firmware

References

https://www.cisa.gov/news-events/ics-advisories/icsa-23-236-02
https://www.cisa.gov/news-events/ics-advisories/icsa-23-236-02

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