Security readout for executives and security teams
Plain-English summary
CVE-2022-22047 is a Windows privilege escalation flaw in CSRSS. An attacker already on a vulnerable Windows system could gain higher privileges. CISA lists it as known exploited, so this is not theoretical risk. It primarily matters where Windows endpoints or servers remain unpatched or legacy systems are still present.
Executive priority
Treat as urgent patch hygiene, not a perimeter-only issue. Because CISA confirms known exploitation, unpatched Windows systems can turn a limited foothold into privileged access, increasing ransomware and data-theft impact.
Technical view
Microsoft rates this as CVSS 7.8 high: local attack vector, low complexity, low privileges required, no user interaction, and high confidentiality, integrity, and availability impact. The bundle maps it to CWE-426. Affected platforms span multiple Windows client and server versions, including Windows 7, 8.1, 10, 11, Server 2008, 2016, 2019, and 2022 editions.
Likely exposure
Exposure is likely on listed Windows clients or servers that have not received the applicable Microsoft security update. Risk is higher on shared workstations, RDS/jump hosts, and servers where low-privileged users or malware may already execute locally.
Exploitation context
Active exploitation is supported by CISA KEV inclusion. The provided sources do not describe exploit mechanics, campaigns, malware families, or public exploit details. Treat this as a post-compromise privilege escalation risk that can help an attacker deepen control after initial access.
Researcher notes
The bundle provides severity, affected products, CVSS vector, CWE-426, MSRC advisory, and CISA KEV status. It does not provide root-cause detail, exploit primitives, indicators of compromise, or campaign attribution. Avoid assuming remote exploitability; the CVSS vector is local.
Mitigation direction
- Apply the Microsoft security update referenced by MSRC for each affected Windows version.
- Prioritize remediation because CISA lists the CVE as known exploited.
- Inventory affected Windows client and server versions, including legacy Server 2008 and Windows 7 systems.
- Check Microsoft guidance for unsupported or extended-support systems before choosing compensating controls.
- Reduce local user access on shared systems until patch status is verified.
Validation and detection
- Confirm each Windows asset version against the affected product list in the source bundle.
- Verify installed patch or build state against Microsoft MSRC guidance for CVE-2022-22047.
- Review vulnerability scanner results for remaining CVE-2022-22047 findings after patch deployment.
- Check endpoint telemetry for unusual privilege changes on formerly vulnerable hosts.
- Track exceptions separately for legacy systems that cannot receive normal updates.
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-426: 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 lookupPrivilege behavior lookup
The CVE wording references privilege impact, so privilege escalation and authorization behavior review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2022-22047 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
- 7.8 (3.1)
- Known Exploited
- Yes
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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.
CISA KEV status
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:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C1.85.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
7.8HighVector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
Source materials
- CVE List V5 sourceCVE List V5
- Windows Client Server Run-time Subsystem (CSRSS) Elevation of Privilege VulnerabilityCVE reference · vendor-advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-22047CVE reference · government-resource
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.
Untrusted Search Path
Untrusted Search Path represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.