Security readout for executives and security teams
Plain-English summary
IBM PowerVM VIOS 3.1 has a critical remote vulnerability that could let an attacker disrupt service or alter system configuration. The affected component sits in virtualization infrastructure, so outages or misconfiguration could affect dependent workloads. The provided sources do not show confirmed active exploitation.
Executive priority
Prioritize remediation for internet-exposed or broadly reachable VIOS environments. Even without confirmed exploitation, a remote unauthenticated issue in virtualization infrastructure can create business interruption and recovery risk across hosted workloads.
Technical view
CVE-2022-35643 affects IBM PowerVM VIOS 3.1. The CVSS 3.0 score is 9.1 with network attack vector, low complexity, no privileges, and no user interaction. The source description cites configuration tampering and denial of service. The supplied vector also reports high confidentiality and availability impact, with integrity listed as none.
Likely exposure
Exposure is likely limited to organizations running IBM PowerVM VIOS 3.1, especially where management or service interfaces are network-accessible beyond tightly controlled administration networks.
Exploitation context
The CVE is not listed as CISA KEV in the provided bundle. IBM X-Force exploit maturity is marked unproven. Treat this as high risk because of unauthenticated network reachability and virtualization impact, not because active exploitation is confirmed.
Researcher notes
Evidence is sparse in the supplied bundle. The description mentions configuration tampering and denial of service, while the CVSS vector lists confidentiality and availability impact but no integrity impact. Do not infer affected subcomponents, protocols, or exploitability details beyond IBM’s advisory and X-Force record.
Mitigation direction
- Identify all IBM PowerVM VIOS 3.1 deployments.
- Review IBM advisory 6607886 for official fix levels.
- Apply IBM-provided updates or mitigations as documented.
- Restrict VIOS network exposure to trusted administration paths.
- Monitor IBM X-Force entry 230956 for status changes.
Validation and detection
- Confirm whether any VIOS instances run version 3.1.
- Compare each VIOS level against IBM’s advisory guidance.
- Review network paths to VIOS management and service interfaces.
- Check whether compensating access controls limit remote reachability.
- Track remediation evidence for each affected host.
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-2022-35643 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
- Critical
- CVSS
- 9.1 (3.0)
- Known Exploited
- No
- Published
Vector: CVSS:3.0/A:H/UI:N/PR:N/AC:L/C:H/S:U/AV:N/I:N/RL:O/E:U/RC:C
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:3.0/A:H/UI:N/PR:N/AC:L/C:H/S:U/AV:N/I:N/RL:O/E:U/RC:C3.95.2Primary CVE scoreVulnerability scoring details
Base CVSS 3.0 score
9.1CriticalVector: CVSS:3.0/A:H/UI:N/PR:N/AC:L/C:H/S:U/AV:N/I:N/RL:O/E:U/RC:C
Source materials
- CVE List V5 sourceCVE List V5
- https://www.ibm.com/support/pages/node/6607886CVE reference · x_refsource_CONFIRM
- ibm-powervm-cve202235643-dos (230956)CVE reference · vdb-entry, x_refsource_XF
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.
