Security readout for executives and security teams
Plain-English summary
CVE-2022-23267 is a high-severity denial-of-service issue in Microsoft .NET, Visual Studio, and PowerShell 7.x. A remote unauthenticated attacker could cause availability loss, but the supplied sources do not describe data theft, privilege escalation, or active exploitation. Business urgency is highest where affected runtimes support internet-facing or critical services.
Executive priority
Prioritize remediation during the next high-severity patch cycle, faster for exposed or critical .NET services. The risk is service disruption rather than data compromise based on the supplied evidence.
Technical view
The CVSS 3.1 vector is 7.5 high: network attack, low complexity, no privileges, no user interaction, unchanged scope, and high availability impact only. The affected set includes .NET Core 3.1, .NET 5.0, .NET 6.0, Visual Studio 2019/2022, Visual Studio for Mac, and PowerShell 7.0/7.2. Official remediation is indicated by the CVSS remediation level.
Likely exposure
Organizations are most exposed if affected .NET runtimes or PowerShell versions are installed on production hosts, CI runners, developer systems, or servers running reachable .NET applications. The bundle does not identify a specific vulnerable service, endpoint, or protocol, so asset inventory is required.
Exploitation context
The sources support remote unauthenticated denial of service potential through the CVSS vector. KEV is false, and the bundle provides no cited evidence of active exploitation or public weaponization. Treat this as availability risk, not confirmed compromise risk.
Researcher notes
Evidence is limited to advisory-level metadata. The bundle does not include root cause, vulnerable API, proof of concept, affected package build numbers, or exploit telemetry. Avoid assumptions beyond availability impact and vendor-listed affected products.
Mitigation direction
- Apply Microsoft updates from the MSRC advisory for affected .NET, Visual Studio, and PowerShell versions.
- Apply relevant Fedora package updates where affected packages are distributed through Fedora.
- Prioritize internet-facing and business-critical .NET services before developer-only systems.
- If patching is delayed, monitor vendor guidance for supported mitigations or workarounds.
Validation and detection
- Inventory installed .NET, Visual Studio, Visual Studio for Mac, and PowerShell 7.x versions.
- Compare discovered versions against Microsoft MSRC and Fedora advisory affected/fixed package guidance.
- Confirm production and CI hosts have received the relevant patched runtime or package updates.
- Review availability monitoring for unexplained crashes or service restarts on affected hosts.
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-2022-23267 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/E:U/RL:O/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.
SSVC decision data
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:H/E:U/RL:O/RC:C3.93.6microsoftVulnerability 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/E:U/RL:O/RC:C
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- .NET and Visual Studio Denial of Service VulnerabilityCVE reference, microsoft · vendor-advisory
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2022-23267CVE reference, CVE · x_refsource_MISC, x_transferred
- FEDORA-2022-d69fee9f38CVE reference, CVE · vendor-advisory, x_refsource_FEDORA
- FEDORA-2022-9a1d5ea33cCVE reference, CVE · vendor-advisory, x_refsource_FEDORA
- FEDORA-2022-256d559f0cCVE reference, CVE · vendor-advisory, x_refsource_FEDORA
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.