Vulnerability-Lookup

MSRC_CVE-2026-20846

Vulnerability from csaf_microsoft - Published: 2026-02-10 08:00 - Updated: 2026-02-10 08:00

Summary

GDI+ Denial of Service Vulnerability

Severity

Important

Notes

Additional Resources: To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle

Disclaimer: The information provided in the Microsoft Knowledge Base is provided \"as is\" without warranty of any kind. Microsoft disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall Microsoft Corporation or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if Microsoft Corporation or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply.

Customer Action: Required. The vulnerability documented by this CVE requires customer action to resolve.

CVE-2026-20846

7.5 (High)


                        
                          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

CWE-126 - Buffer Over-read

Vendor Fix 10.0.28000.1575:Security Update:https://support.microsoft.com/help/5077179 https://support.microsoft.com/help/5077179

Vendor Fix 10.0.17763.8389:Security Update:https://support.microsoft.com/help/5075904 https://support.microsoft.com/help/5075904

Vendor Fix 10.0.20348.4773:Security Update:https://support.microsoft.com/help/5075906 https://support.microsoft.com/help/5075906

Vendor Fix 10.0.20348.4711:Security Hotpatch Update:https://support.microsoft.com/help/5075943 https://support.microsoft.com/help/5075943

Vendor Fix 10.0.19044.6937:Security Update:https://support.microsoft.com/help/5075912 https://support.microsoft.com/help/5075912

Vendor Fix 10.0.19045.6937:Security Update:https://support.microsoft.com/help/5075912 https://support.microsoft.com/help/5075912

Vendor Fix 10.0.26100.32370:Security Update:https://support.microsoft.com/help/5075899 https://support.microsoft.com/help/5075899

Vendor Fix 10.0.26100.32313:Security Hotpatch Update:https://support.microsoft.com/help/5075942 https://support.microsoft.com/help/5075942

Vendor Fix 10.0.26200.7840:Security Update:https://support.microsoft.com/help/5077181 https://support.microsoft.com/help/5077181

Vendor Fix 10.0.26200.7781:Security Hotpatch Update:https://support.microsoft.com/help/5077212 https://support.microsoft.com/help/5077212

Vendor Fix 10.0.22631.6649:Security Update:https://support.microsoft.com/help/5075941 https://support.microsoft.com/help/5075941

Vendor Fix 10.0.25398.2149:Security Update:https://support.microsoft.com/help/5075897 https://support.microsoft.com/help/5075897

Vendor Fix 10.0.26100.7840:Security Update:https://support.microsoft.com/help/5077181 https://support.microsoft.com/help/5077181

Vendor Fix 10.0.26100.7781:Security Hotpatch Update:https://support.microsoft.com/help/5077212 https://support.microsoft.com/help/5077212

Vendor Fix 10.0.26100.7840:Security Update:https://support.microsoft.com/help/5077181 https://support.microsoft.com/help/5077181

Vendor Fix 10.0.14393.8868:Security Update:https://support.microsoft.com/help/5075999 https://support.microsoft.com/help/5075999

Vendor Fix 6.2.9200.25923:Monthly Rollup:https://support.microsoft.com/help/5075971 https://support.microsoft.com/help/5075971

Vendor Fix 6.3.9600.23022:Monthly Rollup:https://support.microsoft.com/help/5075970 https://support.microsoft.com/help/5075970

References

URL

Category

	https://msrc.microsoft.com/update-guide/vulnerabi…	self
	https://msrc.microsoft.com/csaf/advisories/2026/m…	self
	https://www.microsoft.com/en-us/msrc/exploitabili…	external
	https://support.microsoft.com/lifecycle	external
	https://www.first.org/cvss	external
	https://msrc.microsoft.com/update-guide/vulnerabi…	self
	https://msrc.microsoft.com/csaf/advisories/2026/m…	self

Acknowledgments

0ccbbf129444eb66344ccafb92b00df4

xina1i of <a href="https://github.com/xinali">Anity Lab</a>

JSON

To clipboard

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            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "environmentalsScore": 0.0,
            "exploitCodeMaturity": "UNPROVEN",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "remediationLevel": "OFFICIAL_FIX",
            "reportConfidence": "CONFIRMED",
            "scope": "UNCHANGED",
            "temporalScore": 6.5,
            "userInteraction": "NONE",
            "vectorString": "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",
            "version": "3.1"
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      ],
      "threats": [
        {
          "category": "impact",
          "details": "Denial of Service"
        },
        {
          "category": "exploit_status",
          "details": "Publicly Disclosed:No;Exploited:No;Latest Software Release:Exploitation Less Likely"
        }
      ],
      "title": "GDI+ Denial of Service Vulnerability"
    }
  ]
}

CVE-2026-20846 (GCVE-0-2026-20846)

Vulnerability from cvelistv5 – Published: 2026-02-10 17:51 – Updated: 2026-04-10 13:21

Title

GDI+ Denial of Service Vulnerability

Summary

Buffer over-read in Windows GDI+ allows an unauthorized attacker to deny service over a network.

Severity ?

7.5 (High)


                        
                          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

CWE

CWE-126 - Buffer Over-read

Assigner

microsoft

References

URL

Tags

https://msrc.microsoft.com/update-guide/vulnerabi…

vendor-advisorypatch

Impacted products

Vendor

Product

Version

Microsoft

Microsoft Office for Android

Affected: 16.0.1 , < 16.0.19822.20000 (custom)

Microsoft	Windows 10 Version 1607	Affected: 10.0.14393.0 , < 10.0.14393.8868 (custom)
Microsoft	Windows 10 Version 1809	Affected: 10.0.17763.0 , < 10.0.17763.8389 (custom)
Microsoft	Windows 10 Version 21H2	Affected: 10.0.19044.0 , < 10.0.19044.6937 (custom)
Microsoft	Windows 10 Version 22H2	Affected: 10.0.19045.0 , < 10.0.19045.6937 (custom)
Microsoft	Windows 11 version 22H3	Affected: 10.0.22631.0 , < 10.0.22631.6649 (custom)
Microsoft	Windows 11 Version 23H2	Affected: 10.0.22631.0 , < 10.0.22631.6649 (custom)
Microsoft	Windows 11 Version 24H2	Affected: 10.0.26100.0 , < 10.0.26100.7840 (custom)
Microsoft	Windows 11 Version 25H2	Affected: 10.0.26200.0 , < 10.0.26200.7840 (custom)
Microsoft	Windows 11 version 26H1	Affected: 10.0.28000.0 , < 10.0.28000.1575 (custom)
Microsoft	Windows 11 Version 26H1	Affected: 10.0.28000.0 , < 10.0.28000.1575 (custom)
Microsoft	Windows Server 2012	Affected: 6.2.9200.0 , < 6.2.9200.25923 (custom)
Microsoft	Windows Server 2012 (Server Core installation)	Affected: 6.2.9200.0 , < 6.2.9200.25923 (custom)
Microsoft	Windows Server 2012 R2	Affected: 6.3.9600.0 , < 6.3.9600.23022 (custom)
Microsoft	Windows Server 2012 R2 (Server Core installation)	Affected: 6.3.9600.0 , < 6.3.9600.23022 (custom)
Microsoft	Windows Server 2016	Affected: 10.0.14393.0 , < 10.0.14393.8868 (custom)
Microsoft	Windows Server 2016 (Server Core installation)	Affected: 10.0.14393.0 , < 10.0.14393.8868 (custom)
Microsoft	Windows Server 2019	Affected: 10.0.17763.0 , < 10.0.17763.8389 (custom)
Microsoft	Windows Server 2019 (Server Core installation)	Affected: 10.0.17763.0 , < 10.0.17763.8389 (custom)
Microsoft	Windows Server 2022	Affected: 10.0.20348.0 , < 10.0.20348.4773 (custom)
Microsoft	Windows Server 2022, 23H2 Edition (Server Core installation)	Affected: 10.0.25398.0 , < 10.0.25398.2149 (custom)
Microsoft	Windows Server 2025	Affected: 10.0.26100.0 , < 10.0.26100.32370 (custom)
Microsoft	Windows Server 2025 (Server Core installation)	Affected: 10.0.26100.0 , < 10.0.26100.32370 (custom)

Date Public ?

2026-02-10 16:00

Show details on NVD website

JSON

To clipboard

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      "cpeApplicability": [
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          ]
        }
      ],
      "datePublic": "2026-02-10T16:00:00.000Z",
      "descriptions": [
        {
          "lang": "en-US",
          "value": "Buffer over-read in Windows GDI+ allows an unauthorized attacker to deny service over a network."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "vectorString": "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",
            "version": "3.1"
          },
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            }
          ]
        }
      ],
      "problemTypes": [
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              "description": "CWE-126: Buffer Over-read",
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            }
          ]
        }
      ],
      "providerMetadata": {
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        "orgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8",
        "shortName": "microsoft"
      },
      "references": [
        {
          "name": "GDI+ Denial of Service Vulnerability",
          "tags": [
            "vendor-advisory",
            "patch"
          ],
          "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20846"
        }
      ],
      "title": "GDI+ Denial of Service Vulnerability"
    }
  },
  "cveMetadata": {
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    "datePublished": "2026-02-10T17:51:49.875Z",
    "dateReserved": "2025-12-03T05:54:20.377Z",
    "dateUpdated": "2026-04-10T13:21:35.890Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

MSRC_CVE-2026-20846

CVE-2026-20846 (GCVE-0-2026-20846)

Tags

Sightings

Nomenclature