CVE-2026-72758 - Vulnerability Details - OpenCVE

When parsing an AS range in Routinator, if the maximum value of the range is smaller than the minimum value of the range, Routinator will never reach the maximum value and run out of memory.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

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 none

Automatable yes

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

NLnet Labs

Routinator

affected

Version	Status	Constraints
`0.15.3`	unaffected	< *

No data.

No data.

No data.

Project Subscriptions

No data.

Advisories

No advisories yet.

Fixes

Solution

This issue is fixed in 0.15.3 and all later versions.

Workaround

No workaround given by the vendor.

References

Link	Providers
https://www.nlnetlabs.nl/downloads/routinator/CVE-2026-72756.txt

History

Mon, 26 Oct 2026 18:30:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Mon, 26 Oct 2026 17:30:00 +0000

Type	Values Removed	Values Added
Description		When parsing an AS range in Routinator, if the maximum value of the range is smaller than the minimum value of the range, Routinator will never reach the maximum value and run out of memory.
Title		Routinator may exit on malformed ranges
Weaknesses		CWE-755
References		https://www.nlnetlabs.nl/downloads/routinator/CVE-2026-72756.txt
Metrics		cvssV3_1 `{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}`

Projects

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MITRE

Status: PUBLISHED

Assigner: NLnet Labs

Published: 2026-10-26T17:07:14.740Z

Updated: 2026-10-26T17:57:33.250Z

Reserved: 2026-08-10T14:08:41.336Z

Link: CVE-2026-72758

Vulnrichment

Updated: 2026-10-26T17:49:44.445Z

NVD

Status : Deferred

Published: 2026-10-26T18:18:42.850

Modified: 2026-10-26T18:35:08.450

Link: CVE-2026-72758

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

CWE-755

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