Security readout for executives and security teams
Plain-English summary
This CVE affects a specific Huawei CV81-WDM firmware version and can let an unauthenticated network attacker disrupt availability. The known impact is denial of service, not data theft or tampering, but service interruption can still affect operations if the device supports critical connectivity.
Executive priority
Treat this as a high-priority availability risk if CV81-WDM devices are deployed in important network paths. The next decision is inventory-driven: confirm affected firmware, reduce exposure, and follow Huawei’s advisory because the provided sources do not name a specific fix.
Technical view
CVE-2022-37395 is a CWE-20 input validation flaw in CV81-WDM FW 01.70.49.29.46. CVSS 3.1 is 7.5: network exploitable, low complexity, no privileges, no user interaction, unchanged scope, and high availability impact only.
Likely exposure
Known exposure is limited to CV81-WDM FW version 01.70.49.29.46. The source bundle does not provide CPEs, deployment patterns, or additional affected models, so asset inventory is required before assuming broader Huawei exposure.
Exploitation context
The provided sources support potential network-based denial of service. They do not state public exploitation, active exploitation, or inclusion in KEV; the bundle marks KEV as false. No exploit details are needed to assess urgency.
Researcher notes
Evidence is sparse but consistent: CWE-20, CVSS availability-only impact, one affected firmware version, and a Huawei PSIRT advisory. Avoid extrapolating to other products or versions without vendor confirmation. No CPEs are supplied in the bundle.
Mitigation direction
- Identify any CV81-WDM devices and firmware versions in production.
- Check Huawei PSIRT guidance for the applicable fixed version or workaround.
- Reduce network exposure to trusted management and operational networks.
- Monitor device availability and alert on unexplained service disruption.
- Plan replacement or isolation if vendor remediation is unavailable.
Validation and detection
- Query asset inventory for CV81-WDM devices.
- Verify firmware equals 01.70.49.29.46 before marking affected.
- Confirm whether affected devices are reachable from untrusted networks.
- Review monitoring for repeated crashes, resets, or availability loss.
- Document compensating controls and remediation status per asset.
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-2022-37395 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
- High
- CVSS
- 7.5 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/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:L/PR:N/UI:N/S:U/C:N/I:N/A:H3.93.6Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
7.5HighVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://www.huawei.com/en/psirt/security-advisories/huawei-sa-20220810-01-8cfecdcc-enCVE 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.
Improper Input Validation
Improper Input Validation represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.