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CVE Record

CVE-2022-26795: Windows Print Spooler Elevation of Privilege Vulnerability

Windows Print Spooler Elevation of Privilege Vulnerability

HighCVSS 7.8Not KEV-listedUpdated
Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

CVE-2022-26795 is a Windows Print Spooler elevation-of-privilege flaw. An attacker who already has low-privileged local access could potentially gain high-impact control over confidentiality, integrity, and availability on affected Windows systems. It is not described as remotely exploitable in the provided CVSS data.

Executive priority

Treat this as a high-priority Windows patching issue, especially for servers and shared endpoints. It is not evidenced as actively exploited in the provided sources, but the potential privilege gain and broad Windows footprint justify prompt remediation.

Technical view

The provided CVSS v3.1 vector is AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H, scoring 7.8. The issue is mapped to CWE-269 and affects multiple Windows 10, Windows 11 21H2, Windows Server 2019, Windows Server 2022, and Server Core/20H2 variants listed in the bundle.

Likely exposure

Exposure is most likely on unpatched affected Windows endpoints and servers where Print Spooler is present and local user access is possible. Internet-facing exposure is not supported by the provided source data because the attack vector is local.

Exploitation context

The bundle does not show CISA KEV listing, and the CVSS exploit maturity is marked unproven. Active exploitation is therefore not established from the provided evidence. Risk remains meaningful because successful exploitation could elevate privileges with high system impact.

Researcher notes

Key constraints are local access, low privileges, no user interaction, and unchanged scope. The bundle does not provide root-cause details, exploitability proof, or workaround specifics beyond the MSRC advisory reference, so validation should focus on affected-version mapping and patch status.

Mitigation direction

  • Apply Microsoft guidance and security updates for CVE-2022-26795.
  • Prioritize affected servers, shared workstations, and systems with many local users.
  • Review whether Print Spooler is required on sensitive systems.
  • Use vendor guidance before disabling services in production environments.
  • Track remediation through endpoint and server patch compliance reporting.

Validation and detection

  • Inventory systems matching the affected Windows versions in the bundle.
  • Confirm installed Microsoft security updates against the MSRC advisory.
  • Check whether Print Spooler is enabled on high-value Windows systems.
  • Review local user access paths on unpatched assets.
  • Verify remediation status through vulnerability scanning or patch management tooling.
Prepared
Confidence
high
Sources
3

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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 · medium confidence lookup

CWE-269: Authorization and privilege behavior lookup

Authorization weaknesses can support privilege escalation and valid-account review, depending on exploit path. 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 lookup
description · low confidence lookup

Privilege 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 lookup
cve · low confidence lookup

CVE-2022-26795 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
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:U/RL:O/RC:C

Official CVE source material

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.

1CVSS vectors
3Timeline events
2ADP providers
2Source links

SSVC decision data

CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: noneAutomatable: noTechnical Impact: total

CVSS vector scores

1 official score

We 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.

ScoreVersionSeverityVectorExploitImpactSource
7.8CVSS 3.1HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C1.85.9microsoft

Vulnerability scoring details

Base CVSS 3.1 score

7.8High
CVSS 3.1 vector shape for CVE-2022-26795Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

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

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

  1. CVE reservedCVE Program

    The CVE ID was reserved by the assigning CNA.

  2. CVE publishedCVE Program

    The CVE record was published.

  3. CVE updatedCVE Program

    The CVE record metadata indicates this as the latest update time.

ADP provider summaries

CVECVE Program Container
CISA-ADPCISA ADP Vulnrichment
other:ssvc

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
MicrosoftWindows 10 Version 180910.0.17763.0Listed
MicrosoftWindows 10 Version 180910.0.0Listed
MicrosoftWindows Server 201910.0.17763.0Listed
MicrosoftWindows Server 2019 (Server Core installation)10.0.17763.0Listed
MicrosoftWindows 10 Version 190910.0.0Listed
MicrosoftWindows 10 Version 21H110.0.0Listed
MicrosoftWindows Server 202210.0.20348.0Listed
MicrosoftWindows 10 Version 20H210.0.0Listed
MicrosoftWindows Server version 20H210.0.0Listed
MicrosoftWindows 11 version 21H210.0.0Listed
MicrosoftWindows 10 Version 21H210.0.19043.0Listed
Weakness

CWE details

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-269 · source CWE mapping

Improper Privilege Management

Improper Privilege Management represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.