Security readout for executives and security teams
Plain-English summary
CVE-2022-34758 affects Schneider Electric Easergy P5 protection relays running firmware V01.401.102 and prior. A privileged attacker with local access could disable the device watchdog function, weakening operational resilience. This is not listed in KEV, and the provided sources do not show active exploitation.
Executive priority
Treat as a moderate operational risk for sites using affected Easergy P5 relays. The high privilege requirement reduces likelihood, but disabling a watchdog can affect resilience. Prioritize inventory, access control, and vendor-guided remediation.
Technical view
The issue is CWE-20 improper input validation in Easergy P5 firmware. CVSS 3.1 is 5.1 with local access, low complexity, high privileges, no user interaction, high integrity impact, and low availability impact. The described consequence is disabling the watchdog function.
Likely exposure
Exposure is most likely in environments operating Schneider Electric Easergy P5 devices on firmware V01.401.102 or earlier, especially where privileged device access is shared, weakly monitored, or reachable from engineering workstations.
Exploitation context
The CVSS vector requires local access and privileged credentials, so this is not described as a remote unauthenticated issue. KEV status is false in the provided bundle, and no cited source confirms exploitation in the wild.
Researcher notes
Evidence supports affected product, version threshold, CWE, CVSS, and watchdog impact. The bundle does not provide exploit details, proof of exploitation, or a named fixed firmware version. Avoid assuming wider Schneider product impact without vendor confirmation.
Mitigation direction
- Inventory Easergy P5 devices and record firmware versions.
- Prioritize devices running V01.401.102 or prior.
- Review Schneider Electric’s security notification for official remediation guidance.
- Restrict and monitor privileged access to affected devices.
- Apply vendor-approved firmware updates or mitigations when confirmed.
Validation and detection
- Confirm whether Easergy P5 is deployed in production environments.
- Check each device firmware against V01.401.102 and prior.
- Review privileged account assignments for device administration.
- Verify logging covers privileged configuration changes.
- Track Schneider Electric advisory updates for remediation details.
Public sources used
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-20: Exact CWE lookup
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Open ATT&CK lookupCVE-2022-34758 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
- 5.1 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:L
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:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:L0.84.2Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
5.1MediumVector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:L
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.