A missing upper-bound check in the udpif_set_threads() function of Open vSwitch v3.6.90 allows an attacker with OVSDB write access to request an excessive number of handler or revalidation threads. This can cause a denial of service (DoS) via resource exhaustion.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Exploitation poc

Automatable no

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
n/a n/a affected
Version Status Constraints
n/a affected —

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Project Subscriptions

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Advisories

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Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
http://open.com cve-icon cve-icon
https://github.com/majdlatah/OVS-Other-Config-Bug cve-icon cve-icon cve-icon
History

Thu, 04 Jun 2026 19:45:00 +0000

Type Values Removed Values Added
Title Open vSwitch Resource Exhaustion via Missing Thread Bound Check
Weaknesses CWE-399

Thu, 04 Jun 2026 19:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-770
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Thu, 04 Jun 2026 18:30:00 +0000

Type Values Removed Values Added
Description A missing upper-bound check in the udpif_set_threads() function of Open vSwitch v3.6.90 allows an attacker with OVSDB write access to request an excessive number of handler or revalidation threads. This can cause a denial of service (DoS) via resource exhaustion.
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-06-04T18:43:31.463Z

Reserved: 2026-04-06T00:00:00.000Z

Link: CVE-2026-36499

cve-icon Vulnrichment

Updated: 2026-06-04T18:39:16.014Z

cve-icon NVD

Status : Received

Published: 2026-06-04T19:16:28.563

Modified: 2026-06-04T19:16:28.563

Link: CVE-2026-36499

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-06-04T19:30:21Z

Weaknesses