CVE-2021-30062 json
On Schneider Electric ConneXium Tofino OPCLSM TCSEFM0000 before 03.23 and Belden Tofino Xenon Security Appliance, crafted OPC packets can b…
published 2022-04-03 4 y ago modified 2026-06-17 4 mo ago also EUVD-2021-17006
- cvss
- 7.5
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.9%
- EPSS 0.9% chance of exploitation in 30 days, percentile 59%
- public exploits
- 0
- none known
Summary
On Schneider Electric ConneXium Tofino OPCLSM TCSEFM0000 before 03.23 and Belden Tofino Xenon Security Appliance, crafted OPC packets can bypass the OPC enforcer.
Patch / fix
- belden tofino_xenon_security_appliance_firmware 03.2.03
- schneider-electric tcsefm0000_firmware 03.23
Exploit prediction
0.88% chance of exploitation in the next 30 days, higher than 59% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |
| NVD | 2.0 | 5.0 | AV:N/AC:L/Au:N/C:N/I:P/A:N |
References
-
belden.com
/support/security-assurance
vendor-advisory
-
download.schneider-electric.com
/files?p_Doc_Ref=SEVD-2022-011-05
vendor-advisory
Sources
- CVE List CVE-2021-30062
- NVD CVE-2021-30062
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