Security readout for executives and security teams
Plain-English summary
CVE-2021-22365 is an out-of-bounds read issue in Huawei eSE620X vESS. A local attacker could send a specific message to an affected device and cause the related process or service to behave abnormally. The provided sources do not include a severity score.
Executive priority
Treat this as an asset-scoping and vendor-guidance item unless affected versions are confirmed. Business urgency rises if these systems support critical services or allow broad local access.
Technical view
The flaw affects eSE620X vESS V100R001C10SPC200, V100R001C20SPC200, and V200R001C00SPC300. It stems from insufficient validation of an internal message, leading to an out-of-bounds read. The documented impact is abnormal process and service behavior.
Likely exposure
Exposure appears limited to organizations running the listed eSE620X vESS versions. The source describes a local attacker, so risk depends heavily on who can access the device or send relevant internal messages.
Exploitation context
The bundle does not cite active exploitation, public exploit availability, or CISA KEV listing. It only states that a local attacker can exploit the issue using a specific message to the target device.
Researcher notes
Evidence is sparse: no CVSS, CWE, exploit status, or remediation details are included in the supplied bundle. Avoid assuming remote reachability or impact beyond service/process abnormality.
Mitigation direction
- Identify any eSE620X vESS deployments and record exact software versions.
- Review the Huawei PSIRT advisory for vendor remediation or upgrade guidance.
- Limit local access to affected systems to trusted administrators only.
- Monitor affected services for abnormal process restarts or service instability.
Validation and detection
- Compare deployed eSE620X vESS versions against the three affected versions.
- Confirm whether Huawei guidance has been applied to affected deployments.
- Review access controls around local users and internal message paths.
- Check operational logs for unexplained process or service abnormality.
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.
CVE-2021-22365 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://www.huawei.com/en/psirt/security-advisories/huawei-sa-20210526-02-outbounds-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.