CVE-2026-72758

HIGH 7.5

Routinator may exit on malformed ranges

CVSS Score

7.5

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-755
Vendor	nlnet labs
Product	routinator
Published	Oct 26, 2026

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CVSS v3 Breakdown

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

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

NLnet Labs / Routinator

All versions affected

References

NVD ↗ CVE.org ↗ EPSS Data ↗

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

Credits

Qifan Zhang, Palo Alto Networks