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CVE intelligence

CVE-2026-33814

Vulnerability intelligence

Published May 7, 2026Sources checked Nov 11, 2026
7.5HIGHCVSS out of 10
What this means

Review the available evidence

CVE-2026-33814 and is rated High severity with a CVSS score of 7.5. It is not in the current CISA KEV record we collected. That does not prove exploitation has not occurred.

What to do next

Remediation and response

Microsoft Security Response Center guidance

Vendor revision: Oct 31, 2026
Vendor remediation details

CBL-Mariner Releases Release Notes

Vendor-listed releases

  • 1.26.3-1
  • 1.7.7-4
  • 1.3.0-2
  • 2.1.6-4
  • 1.62.0-4
  • 3.5.30-2
  • 2.22.0-4
  • 3.19.1.kata3-3
  • 3.15.0.aks0-11
  • 1.7.1-4
  • 1.9.5-14
  • 1.4.0-2
  • 3.19.1.kata3-4
  • 1.9.5-15
  • 1.12.15-7
  • 1.7.7-5
  • 1.12.15-9
  • 2.2.4-2
  • 1.62.0-6
  • 2.22.0-5
  • 3.15.0.aks0-12
  • 1.7.1-7
CISA KEVNot listedBased on the latest collected catalog
EPSS0.8%Estimated 30-day exploitation probability
Ransomware useNot markedCISA KEV ransomware field
Threat actors0Source-linked actor relationships
Overview

What is CVE-2026-33814?

When processing HTTP/2 SETTINGS frames, transport will enter an infinite loop of writing CONTINUATION frames if it receives a SETTINGS_MAX_FRAME_SIZE with a value of 0.

Source: NVD