Security readout for executives and security teams
Plain-English summary
CVE-2021-22288 is a denial-of-service issue in ABB SPIET800 and PNI800 industrial communication modules. A network attacker may make a module unresponsive, disrupting availability. The provided sources do not identify confidentiality or integrity impact, affected versions, active exploitation, or a specific fix.
Executive priority
Treat this as a high-priority availability risk for environments where these ABB modules support critical operations. Prioritize inventory and vendor-guidance review before scheduling changes.
Technical view
The vulnerability is improper input validation (CWE-20) affecting ABB SPIET800 and PNI800 modules. CVSS 3.1 is 7.5, network exploitable, low complexity, no privileges, no user interaction, with high availability impact only. Product version details are unspecified in the provided source bundle.
Likely exposure
Exposure is most likely in OT or industrial environments using ABB SPIET800 or PNI800 modules on reachable networks. Scope is unclear because affected versions are unspecified in the provided sources.
Exploitation context
The CVE data supports unauthenticated network denial of service. The source bundle says KEV is false and provides no evidence of active exploitation or public weaponization.
Researcher notes
The public source bundle is sparse: affected versions, patch status, and detailed technical conditions are not included. Analysis should stay bounded to network-reachable denial of service from improper input validation.
Mitigation direction
- Check ABB advisory 7PAA001353 for affected versions, updates, and official workarounds.
- Inventory SPIET800 and PNI800 modules before deciding remediation scope.
- Limit reachable network paths to these modules where operationally feasible.
- Monitor module availability and unresponsive-state alarms during remediation planning.
Validation and detection
- Identify all deployed ABB SPIET800 and PNI800 modules.
- Compare deployed module details against ABB advisory 7PAA001353.
- Confirm unauthenticated users cannot reach module network interfaces.
- Review operational logs for unexplained module unresponsiveness.
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
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-2021-22288 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://search.abb.com/library/Download.aspx?DocumentID=7PAA001353&LanguageCode=en&DocumentPartId=&Action=LaunchCVE 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.