Security readout for executives and security teams
Plain-English summary
This is a Windows privilege escalation flaw. An attacker who can already run a crafted application on an affected system could gain elevated rights, increasing the impact of an initial foothold. Microsoft says its update corrects how Windows Modules Installer handles memory objects.
Executive priority
Treat as high priority for normal patch cycles, with faster handling on shared or high-value Windows systems. This flaw does not appear remotely exploitable by itself, but it can turn limited access into elevated control.
Technical view
CVE-2020-0911 affects Windows Modules Installer and is caused by improper handling of objects in memory. The CVSS 3.1 vector is local, low complexity, low privileges required, no user interaction, with high confidentiality, integrity, and availability impact. Microsoft lists an official remediation update.
Likely exposure
Exposure is most likely on unpatched affected Windows 7 SP1, Windows 10 1507 through 2004, Windows Server 2016, Windows Server 2019, and listed Server Core installations. Risk depends on whether an attacker can run code locally or through an existing foothold.
Exploitation context
The source bundle does not show CISA KEV listing or cited evidence of active exploitation. Microsoft describes exploitation as requiring a specially crafted application on the victim system. The CVSS temporal vector indicates proof-of-concept exploit maturity, but not confirmed in-the-wild use.
Researcher notes
Affected products are broad, but the provided CPE data contains some apparent inconsistencies. Use the MSRC advisory as the authoritative product and update source. Do not claim active exploitation from this bundle; KEV is false and no cited source confirms it.
Mitigation direction
- Apply the Microsoft security update referenced by MSRC for CVE-2020-0911.
- Prioritize shared workstations, servers, and systems where local users can run applications.
- Verify unsupported or legacy Windows systems against Microsoft guidance.
- Restrict untrusted local application execution where patching is delayed.
Validation and detection
- Inventory Windows versions against the affected product list in the CVE bundle.
- Confirm Microsoft update installation for CVE-2020-0911 on affected assets.
- Review endpoint telemetry for suspicious local privilege escalation activity.
- Validate Server Core installations separately where listed as affected.
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.
Execution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program 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-2020-0911 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
- No
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/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.
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:P/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:P/RL:O/RC:C
Source materials
- CVE List V5 sourceCVE List V5
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0911CVE 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.