VulnTideExploited vulnerabilities, by vendor. Data as of .
Not in CISA KEVPublished CVSS 9.8 criticalEPSS 1% probability of exploitation in 30 days
Microsoft

CVE-2026-88243: Windows DHCP Server Remote Code Execution Vulnerability

Is it exploited?

Not on CISA's list. CISA has not added it to the Known Exploited Vulnerabilities catalog as of . If CISA adds it, this page shows it as known exploited.

How likely is exploitation in the next 30 days?
1%

EPSS score, percentile 63.5 of all scored records. A probability estimated by FIRST, not a report of exploitation.

How severe?
9.8 Critical

CVSS v3.1 base score, given by the CNA

What should I do?

CISA has set no required action, because the vulnerability is not in KEV.

Advisories and patches (1)

Which versions are affected?

Affected

  • from 10.0.14393.0 to before 10.0.14393.9688
  • from 10.0.14393.0 to before 10.0.14393.9688
  • from 10.0.17763.0 to before 10.0.17763.9487
  • from 10.0.17763.0 to before 10.0.17763.9487
  • from 10.0.20348.0 to before 10.0.20348.5870
  • from 10.0.26100.0 to before 10.0.26100.33822

and 1 more in the table below

Versions by product

Source: CISA KEV 2026.11.10, as of ; FIRST EPSS, as of ; CVE List, as of . About the data.

Description

Windows DHCP Server Remote Code Execution Vulnerability

Out-of-bounds read in Windows DHCP Server allows an unauthorized attacker to execute code over a network.

Source: CVE List, as of . About the data.

What to do

Advisories and patches

This summary is based on the CVE record as of . Check the vendor's advisory before you act: affected versions and fixes can change.

Affected products and versions

Versions by product, as listed in the CVE record (7 products)
Microsoft Windows Server 2016
StatusVersions
Affectedfrom 10.0.14393.0 to before 10.0.14393.9688
Microsoft Windows Server 2016 (Server Core installation)
StatusVersions
Affectedfrom 10.0.14393.0 to before 10.0.14393.9688
Microsoft Windows Server 2019
StatusVersions
Affectedfrom 10.0.17763.0 to before 10.0.17763.9487
Microsoft Windows Server 2019 (Server Core installation)
StatusVersions
Affectedfrom 10.0.17763.0 to before 10.0.17763.9487
Microsoft Windows Server 2022
StatusVersions
Affectedfrom 10.0.20348.0 to before 10.0.20348.5870
Microsoft Windows Server 2025
StatusVersions
Affectedfrom 10.0.26100.0 to before 10.0.26100.33822
Microsoft Windows Server 2025 (Server Core installation)
StatusVersions
Affectedfrom 10.0.26100.0 to before 10.0.26100.33822

Source: CVE List, as of . About the data.

Weakness

CWE-125

CWE and CAPEC are maintained by MITRE; the entries are those named in the CVE record.

Timeline

DateEvent
CVE record published
CVE record last updated

Known exploited Microsoft vulnerabilities

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  • CVE-2026-96951: Microsoft Windows Command Injection Vulnerability (added )
  • CVE-2026-65660: Microsoft SharePoint Code Injection Vulnerability (added )
  • CVE-2026-81963: Microsoft Windows Link Following Vulnerability (added )
  • CVE-2026-85880: Microsoft Windows Heap-Based Buffer Overflow Vulnerability (added )