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CVE-2023-40709

Uncontrolled Resource Consumption in OPTO 22 SNAP PAC S1 Built-In Web Server

Medium6.8EPSS 0.55%
Published
Updated
Reserved
Assigned by
Dragos

Description

An adversary could crash the entire device by sending a large quantity of ICMP requests if the controller has the built-in web server enabled but does not have the built-in web server completely set up and configured for the SNAP PAC S1 Firmware version R10.3b

Scores

CVSS scores of CVE-2023-40709, by who scored it
Scored byCVSSScoreVector
DragosCNA (assigner)3.1Medium6.8CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N
NVDNVD · Modified3.1High7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS (exploitation in 30 days)
0.55% · top 54% of all CVEs (6 Nov 2026)
CISA SSVC
Exploitation: none · Automatable: yes · Technical impact: partial
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.8.

Weakness

Affected products

References (1)

Sources

The same CVE in the primary databases and aggregators, to check against.

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Record last updated .