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NVD / CVE Program· CNA microsoft

CVE-2026-81955: Windows Graphics Component Remote Code Execution Vulnerability

HighCVSS 8.8 · v3.1—No exploit Fix available

Noroxi assessment

Priority: Monitor (action score 35/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.83% (FIRST EPSS); higher than 58.2% of all records.
  • Anyone who can reach it over the internet can trigger it. No account or password is required. A user must open a link or visit a page. No special conditions are required; it is repeatable.
  • Fixed version: Microsoft 365 Apps for Enterprise for 32-bit Systems 16.0.20326.20138; Microsoft 365 Apps for Enterprise for 64-bit Systems 16.0.20326.20138; Microsoft Office 2016 (32-bit edition) 16.0.5569.1003.
  • Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. Upgrade to Microsoft 365 Apps for Enterprise for 32-bit Systems 16.0.20326.20138; Microsoft 365 Apps for Enterprise for 64-bit Systems 16.0.20326.20138; Microsoft Office 2016 (32-bit edition) 16.0.5569.1003 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

Heap-based buffer overflow in Microsoft Graphics Component allows an unauthorized attacker to execute code over a network.

Published
Sep 8, 2026
Updated
Nov 10, 2026
EPSS
0.8% · 58th percentile

Report tools

JSON

Action score

35

Monitor

Low priority for now.

CVSS
35 / 40 · 8.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.8%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
total

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
—
CNA · microsoft
8.8
NVD has not scored this yet; the score shown is the CNA’s.

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2026-81955

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

—

Versions reported by the vendor

Affected version ranges reported by the assigning authority (microsoft). Independent of NVD's CPE analysis and usually ahead of it.

  • Microsoft Microsoft 365 Apps for Enterprise

    • 16.0.1 and later · before 16.0.20326.20138affected

  • Microsoft Microsoft Office 2016

    • 16.0.0 and later · before 16.0.5569.1003affected

  • Microsoft Microsoft Office 2019

    • 19.0.0 and later · before 16.0.10417.20207affected

  • Microsoft Microsoft Office 365 for Mac

    • 1.0.0 and later · before 16.113.26091433affected

  • Microsoft Microsoft Office LTSC 2021

    • 16.0.1 and later · before 16.0.14334.20906affected

  • Microsoft Microsoft Office LTSC 2024

    • 16.0.0 and later · before 16.0.17932.20976affected

  • Microsoft Microsoft Office LTSC for Mac 2021

    • 16.0.1 and later · before 16.113.26091433affected

  • Microsoft Microsoft Office LTSC for Mac 2024

    • 16.0.0 and later · before 16.113.26091433affected

  • Microsoft Windows 10 Version 1607

    • 10.0.14393.0 and later · before 10.0.14393.9504affected

  • Microsoft Windows 10 Version 1809

    • 10.0.17763.0 and later · before 10.0.17763.9245affected

  • Microsoft Windows 10 Version 21H2

    • 10.0.19044.0 and later · before 10.0.19044.7725affected

  • Microsoft Windows 10 Version 22H2

    • 10.0.19045.0 and later · before 10.0.19045.7725affected

Same product

microsoft: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-70096Windows Rich Text Edit Control Remote Code Execution Vulnerability
    39Monitor
  • CVE-2026-124228Microsoft Office Outlook Remote Code Execution Vulnerability
    35Monitor
  • CVE-2026-124187Microsoft Office Excel Remote Code Execution Vulnerability
    35Monitor

Published before and after this one in the same product

  • Later →CVE-2026-109487Nov 10, 2026 · Microsoft PowerPoint Remote Code Execution Vulnerability
    30Monitor
  • Later →CVE-2026-109491Nov 10, 2026 · Microsoft Office Word Remote Code Execution Vulnerability
    30Monitor
  • Later →CVE-2026-109493Nov 10, 2026 · Microsoft Office Access Remote Code Execution Vulnerability
    35Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
Microsoft 365 Apps for Enterprise for 32-bit Systems16.0.20326.20138 · Release NotesMicrosoft (MSRC)
Microsoft 365 Apps for Enterprise for 64-bit Systems16.0.20326.20138 · Release NotesMicrosoft (MSRC)
Microsoft Office 2016 (32-bit edition)16.0.5569.1003 · KB5002916Microsoft (MSRC)
Microsoft Office 2016 (64-bit edition)16.0.5569.1003 · KB5002916Microsoft (MSRC)
Microsoft Office 2019 for 32-bit editions16.0.10417.20207 · Release NotesMicrosoft (MSRC)
Microsoft Office 2019 for 64-bit editions16.0.10417.20207 · Release NotesMicrosoft (MSRC)
Microsoft Office 365 for Mac16.113.26091433 · Release NotesMicrosoft (MSRC)
Microsoft Office LTSC 2021 for 32-bit editions16.0.14334.20906 · Release NotesMicrosoft (MSRC)
Microsoft Office LTSC 2021 for 64-bit editions16.0.14334.20906 · Release NotesMicrosoft (MSRC)
Microsoft Office LTSC 2024 for 32-bit editions16.0.17932.20976 · Release NotesMicrosoft (MSRC)
Microsoft Office LTSC 2024 for 64-bit editions16.0.17932.20976 · Release NotesMicrosoft (MSRC)
Microsoft Office LTSC for Mac 202116.113.26091433 · Release NotesMicrosoft (MSRC)
Microsoft Office LTSC for Mac 202416.113.26091433 · Release NotesMicrosoft (MSRC)
Windows 10 Version 1607 for 32-bit Systems10.0.14393.9504 · KB5122874Microsoft (MSRC)
Windows 10 Version 1607 for x64-based Systems10.0.14393.9504 · KB5122874Microsoft (MSRC)
Windows 10 Version 1809 for 32-bit Systems10.0.17763.9245 · KB5122876Microsoft (MSRC)
Windows 10 Version 1809 for x64-based Systems10.0.17763.9245 · KB5122876Microsoft (MSRC)
Windows 10 Version 21H2 for 32-bit Systems10.0.19044.7725 · KB5122878Microsoft (MSRC)
Windows 10 Version 21H2 for ARM64-based Systems10.0.19044.7725 · KB5122878Microsoft (MSRC)
Windows 10 Version 21H2 for x64-based Systems10.0.19044.7725 · KB5122878Microsoft (MSRC)
Windows 10 Version 22H2 for 32-bit Systems10.0.19045.7725 · KB5122878Microsoft (MSRC)
Windows 10 Version 22H2 for ARM64-based Systems10.0.19045.7725 · KB5122878Microsoft (MSRC)
Windows 10 Version 22H2 for x64-based Systems10.0.19045.7725 · KB5122878Microsoft (MSRC)
Windows 11 Version 23H2 for ARM64-based Systems10.0.22631.7582 · KB5122880Microsoft (MSRC)
Windows 11 Version 23H2 for x64-based Systems10.0.22631.7582 · KB5122880Microsoft (MSRC)
Windows 11 Version 24H2 for ARM64-based Systems10.0.26100.9445 · KB5124008Microsoft (MSRC)
Windows 11 Version 24H2 for x64-based Systems10.0.26100.9445 · KB5124008Microsoft (MSRC)
Windows 11 Version 25H2 for ARM64-based Systems10.0.26200.9445 · KB5124008Microsoft (MSRC)
Windows 11 Version 25H2 for x64-based Systems10.0.26200.9445 · KB5124008Microsoft (MSRC)
Windows 11 Version 26H1 for ARM64-based Systems10.0.28000.2954 · KB5124012Microsoft (MSRC)

+13

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

  • CVE-2026-7009635 days apartWindows Rich Text Edit Control Remote Code Execution Vulnerability
    39Monitor
  • CVE-2026-11130163 days apartMicrosoft Office Access Remote Code Execution Vulnerability
    35Monitor
  • CVE-2026-11130563 days apartMicrosoft Office Access Remote Code Execution Vulnerability
    35Monitor
  • CVE-2026-11130663 days apartMicrosoft Office Word Remote Code Execution Vulnerability
    35Monitor
  • CVE-2026-11130763 days apartMicrosoft Office Word Remote Code Execution Vulnerability
    35Monitor
  • CVE-2026-11130863 days apartMicrosoft Office Word Remote Code Execution Vulnerability
    35Monitor

National notice (Türkiye Cybersecurity Directorate / USOM)

Official security notices citing this record; remediation advice is on the agency's page.

All national notices →

Not on record for this CVE: patch commit or PR link · researcher credit · public bounty program.

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • A user must open a link or visit a page.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
Required
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

CWE-122 · Heap-based Buffer Overflow

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

nvd-secondary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

ATT&CK techniques

—

References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records