Security readout for executives and security teams
Plain-English summary
This issue affects Schneider Electric PowerLogic PM55xx, PM8ECC, EGX100, and EGX300 devices. The password recovery process may be weak enough to let an attacker gain administrator-level access to a device. The public bundle does not provide CVSS scoring, affected version detail, or confirmed exploitation.
Executive priority
Prioritize this for operational technology environments using the named PowerLogic devices. Administrator-level compromise of meters or gateways can create business risk, but urgency depends on confirmed affected versions and network exposure.
Technical view
CVE-2021-22763 is a CWE-640 weak forgotten-password recovery vulnerability in listed PowerLogic meters and gateways. The stated impact is possible administrator-level access to the device. Version-specific applicability is deferred to Schneider Electric security notification SEVD-2021-159-02.
Likely exposure
Exposure is most relevant for organizations operating the named PowerLogic devices, especially where management interfaces are reachable from untrusted networks or shared operational networks.
Exploitation context
The provided sources do not show CISA KEV listing, public exploitation, exploit availability, or attack prerequisites. Treat exploitation status as unconfirmed from this bundle.
Researcher notes
The bundle is sparse: no CVSS vector, no affected firmware list, and no exploit detail are included. Schneider Electric’s advisory is the controlling source for version scope and remediation.
Mitigation direction
- Review Schneider Electric SEVD-2021-159-02 for affected versions and remediation guidance.
- Apply only vendor-published firmware updates or configuration changes listed in the advisory.
- Restrict device administration access to trusted management networks and approved administrators.
- Monitor Schneider Electric advisories for updates affecting these products.
Validation and detection
- Inventory PowerLogic PM55xx, PM8ECC, EGX100, and EGX300 deployments.
- Compare exact models and firmware versions against SEVD-2021-159-02.
- Confirm whether administration interfaces are reachable from untrusted networks.
- Document vendor remediation status for each affected device.
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-640: 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 lookupCredential and access behavior lookup
The CVE wording references authentication or credential exposure, so valid-account and credential-access review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2021-22763 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
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
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 and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2021-159-02&p_enDocType=Security+and+Safety+Notice&p_File_Name=SEVD-2021-159-02.pdfCVE reference · x_refsource_MISC
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.
Weak Password Recovery Mechanism for Forgotten Password
Weak Password Recovery Mechanism for Forgotten Password represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.