Resource exhaustion in Opto 22 Snap Pac S1
CVE-2023-40710
An adversary could cause a continuous restart loop to the entire device by sending a large quantity of HTTP GET 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
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.8 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.006 (43.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 44th percentile — 43.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000
Affected products
- Opto 22 Snap Pac S1 — versions R10.3b
- Opto22 Snap Pac S1
- Opto22 Snap Pac S1 Firmware — versions r10.3b
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.cisa.gov/news-events/ics-advisories/icsa-23-236-02 (US Government Resource, Third Party Advisory)
Frequently asked questions
- What is CVE-2023-40710?
- CVE-2023-40710 is a medium-severity vulnerability in Opto 22 Snap Pac S1, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 6.8/10. Published 2023-08-24.
- How severe is CVE-2023-40710?
- Medium severity. CVSS v3 base score is 6.8 out of 10.
- Is CVE-2023-40710 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.