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CVE Record

CVE-2022-44676: Windows Secure Socket Tunneling Protocol (SSTP) Remote Code Execution Vulnerability

Windows Secure Socket Tunneling Protocol (SSTP) Remote Code Execution Vulnerability

HighCVSS 8.1Not KEV-listedUpdated
Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

CVE-2022-44676 is a high-severity Microsoft Windows SSTP remote code execution vulnerability. An unauthenticated attacker could target vulnerable Windows systems over the network, but the CVSS vector rates attack complexity as high. Business urgency is highest for Windows systems exposing SSTP services, especially internet-facing remote access infrastructure.

Executive priority

Treat this as high priority for externally reachable Windows remote access services. Patch promptly, but avoid panic: the provided sources do not show known exploitation, and attack complexity is rated high.

Technical view

The supplied data identifies a Windows Secure Socket Tunneling Protocol remote code execution flaw affecting multiple Windows client and server versions. CVSS 3.1 is 8.1: network attack vector, no privileges, no user interaction, unchanged scope, and high confidentiality, integrity, and availability impact. Microsoft indicates an official fix exists through its advisory.

Likely exposure

Likely exposure is Windows systems in the listed affected versions where SSTP is present and reachable. The bundle does not prove every listed Windows installation is practically exploitable by default, so teams should validate enabled services and network reachability against Microsoft guidance.

Exploitation context

The source bundle does not cite active exploitation, and KEV is false. Exploit maturity is marked unproven in the CVSS data. The risk remains significant because the vulnerability is network-reachable and unauthenticated, even with high attack complexity.

Researcher notes

The strongest technical signals are CVSS 8.1, AV:N, AC:H, PR:N, UI:N, and high CIA impact. Sources do not provide root cause, exploit primitives, or detailed preconditions, so validation should focus on affected builds, patch state, SSTP exposure, and vendor advisory updates.

Mitigation direction

  • Apply Microsoft’s official updates for CVE-2022-44676 on affected Windows versions.
  • Prioritize internet-facing or remote access systems using SSTP.
  • Restrict network access to SSTP services where business requirements allow.
  • Retire or isolate affected unsupported Windows versions where patching is unavailable.
  • Track Microsoft’s advisory for any revised guidance or affected-version changes.

Validation and detection

  • Inventory Windows assets matching the affected product and version list.
  • Confirm Microsoft’s official CVE-2022-44676 fix is installed on each affected system.
  • Identify systems where SSTP services are enabled or externally reachable.
  • Validate compensating network controls around exposed SSTP endpoints.
  • Document exceptions for systems that cannot be updated immediately.
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.

description · low confidence lookup

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 lookup
cve · low confidence lookup

CVE-2022-44676 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
8.1 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:N/AC:H/PR:N/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
0Timeline events
0ADP providers
2Source links

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
8.1CVSS 3.1HighCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C2.25.9Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

8.1High
CVSS 3.1 vector shape for CVE-2022-44676Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:N/AC:H/PR:N/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
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 21H110.0.0Listed
MicrosoftWindows Server 202210.0.20348.0Listed
MicrosoftWindows 10 Version 20H210.0.0Listed
MicrosoftWindows 11 version 21H210.0.22000.0Listed
MicrosoftWindows 10 Version 21H210.0.19044.0Listed
MicrosoftWindows 11 version 22H210.0.22621.0Listed
MicrosoftWindows 10 Version 22H210.0.19045.0Listed
MicrosoftWindows 10 Version 150710.0.10240.0Listed
MicrosoftWindows 10 Version 160710.0.14393.0Listed
MicrosoftWindows Server 201610.0.14393.0Listed
MicrosoftWindows Server 2016 (Server Core installation)10.0.14393.0Listed
MicrosoftWindows 76.1.0Listed
MicrosoftWindows 7 Service Pack 16.1.0Listed
MicrosoftWindows 8.16.3.0Listed
MicrosoftWindows Server 2008 Service Pack 26.0.6003.0Listed
MicrosoftWindows Server 2008 Service Pack 2 (Server Core installation)6.0.6003.0Listed
MicrosoftWindows Server 2008 Service Pack 26.0.6003.0Listed
MicrosoftWindows Server 2008 R2 Service Pack 16.1.7601.0Listed
MicrosoftWindows Server 2008 R2 Service Pack 1 (Server Core installation)6.1.7601.0Listed
MicrosoftWindows Server 20126.2.9200.0Listed
MicrosoftWindows Server 2012 (Server Core installation)6.2.9200.0Listed
MicrosoftWindows Server 2012 R26.3.9600.0Listed
MicrosoftWindows Server 2012 R2 (Server Core installation)6.3.9600.0Listed
Weakness

CWE details

No CWE listed

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