Security readout for executives and security teams
Plain-English summary
This vulnerability affects Schneider Electric industrial communication modules. A URL parsing flaw can cause denial of service. The provided sources do not indicate data theft, integrity loss, or remote code execution, but availability disruption can still matter in OT environments.
Executive priority
Treat as a moderate OT availability risk. Prioritize environments where affected modules support critical operations or are reachable from broader networks.
Technical view
CVE-2022-34764 is a CWE-119 memory bounds issue in URL parsing. CVSS 3.1 is 5.9: network reachable, high attack complexity, no privileges or user interaction, and high availability impact only.
Likely exposure
Exposure is limited to Schneider Electric BMENUA0100 OPC UA Modicon Communication Module V1.10 and prior, and BMENOR2200H X80 advanced RTU Communication Module V1.0.
Exploitation context
The source bundle marks KEV as false and provides no cited evidence of active exploitation. The CVSS vector shows remote network reachability, but high attack complexity reduces practical exploit likelihood.
Researcher notes
Evidence supports denial of service through URL parsing only. Do not assume confidentiality, integrity, code execution, or public exploitation without additional vendor or threat-intelligence confirmation.
Mitigation direction
- Inventory Schneider Electric BMENUA0100 and BMENOR2200H modules and firmware versions.
- Review Schneider Electric advisory SEVD-2022-193-01 for official remediation guidance.
- Limit module network access to trusted OT and management segments.
- Prioritize availability monitoring for affected industrial communication paths.
Validation and detection
- Confirm whether BMENUA0100 devices run V1.10 or earlier.
- Confirm whether BMENOR2200H devices run V1.0.
- Map reachable network paths to affected modules.
- Review operational logs for unexplained module restarts or communication loss.
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-119: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2022-34764 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Medium
- CVSS
- 5.9 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H2.23.6Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
5.9MediumVector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Source materials
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.