Opto 22 GRV-EPIC and groov RIO
Affects CISA Opto 22Source GCVE Database
Not known to be exploited · CVSS 7.5 High : upgrade to 4.0.3 soon.
Data as of 13 Nov 2026, 18:29 UTC
Thin evidence
One scorer or none| CNA (icscert) | CVSS 4.0 | 7.5 |
|---|---|---|
| CNA (icscert) | CVSS 3.1 | 6.2 |
- Patch
- Available – fixed in 4.0.3
CVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:NExploitation evidence
Disclosed: evidence found.
CVE published 20 Nov 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 13 Nov 2026.
What to do
Upgrade CISA Opto 22 to 4.0.3.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| CISA Opto 22 | Affected
| Fixed in
|
Description
CISA recommends users take defensive measures to minimize the risk of exploitation of this vulnerability, such as:
References
- raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/OT/white/2025/icsa-25-324-03.json (opens in a new tab)
- cisa.gov/news-events/ics-advisories/icsa-25-324-03 (opens in a new tab)
- cisa.gov/uscert/ics/alerts/ICS-ALERT-10-301-01 (opens in a new tab)
- cisa.gov/resources-tools/resources/ics-recommended-practices (opens in a new tab)
- cisa.gov/sites/default/files/publications/Cybersecurity_Best_Practices_for_Industrial_Control_Systems.pdf (opens in a new tab)
- cisa.gov/topics/industrial-control-systems (opens in a new tab)
- cisa.gov/news-events/ics-alerts/ics-alert-10-301-01 (opens in a new tab)
- cisa.gov/sites/default/files/recommended_practices/NCCIC_ICS-CERT_Defense_in_Depth_2016_S508C.pdf (opens in a new tab)
- cisa.gov/news-events/news/targeted-cyber-intrusion-detection-and-mitigation-strategies-update-b (opens in a new tab)
- cisa.gov/secure-our-world/teach-employees-avoid-phishing (opens in a new tab)
- cisa.gov/news-events/news/avoiding-social-engineering-and-phishing-attacks (opens in a new tab)