CVE-2021-30063
On Schneider Electric ConneXium Tofino OPCLSM TCSEFM0000 before 03.23 and Belden Tofino Xenon...
On Schneider Electric ConneXium Tofino OPCLSM TCSEFM0000 before 03.23 and Belden Tofino Xenon Security Appliance, crafted OPC packets can cause an OPC enforcer denial of service.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
On Schneider Electric ConneXium Tofino OPCLSM TCSEFM0000 before 03.23 and Belden Tofino Xenon Security Appliance, crafted OPC packets can cause an OPC enforcer denial of service.
- Record
CVE-2021-30063- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:N/I:N/A:P - Updated
- 2026-11-02
CVE List No score
On Schneider Electric ConneXium Tofino OPCLSM TCSEFM0000 before 03.23 and Belden Tofino Xenon Security Appliance, crafted OPC packets can cause an OPC enforcer denial of service.
- Record
CVE-2021-30063- Updated
- 2026-11-02
EUVDEUVD-2021-17007 No score
On Schneider Electric ConneXium Tofino OPCLSM TCSEFM0000 before 03.23 and Belden Tofino Xenon Security Appliance, crafted OPC packets can cause an OPC enforcer denial of service.
- Record
EUVD-2021-17007- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-922p-95r7-82vf
On Schneider Electric ConneXium Tofino OPCLSM TCSEFM0000 before 03.23 and Belden Tofino Xenon...
On Schneider Electric ConneXium Tofino OPCLSM TCSEFM0000 before 03.23 and Belden Tofino Xenon Security Appliance, crafted OPC packets can cause an OPC enforcer denial of service.
- Record
GHSA-922p-95r7-82vf- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
Affected products
- belden eagle 20 tofino 943 987-501-tx\/tx firmware
- belden eagle 20 tofino 943 987-502 -tx\/mm firmware
- belden eagle 20 tofino 943 987-504-mm\/tx firmware
- belden eagle 20 tofino 943 987-505-mm\/mm firmware
- belden tofino argon fa-tsa-100-tx\/tx firmware
- belden tofino argon fa-tsa-220-mm\/mm firmware
- belden tofino argon fa-tsa-220-mm\/tx firmware
- belden tofino argon fa-tsa-220-tx\/mm firmware
- belden tofino argon fa-tsa-220-tx\/tx firmware
- belden tofino xenon security appliance firmware
- schneider-electric tcsefm0000 firmware
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-30063 is a high vulnerability (CVSS 7.5) in Belden Eagle 20 Tofino 943 987-501-tx\/tx Firmware, published April 3, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.00%, the 62nd percentile. No source names a fixed version.