7.5 High

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…

CVE-2026-72758

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.

Assessment

CVSS: 7.5 (v3.1)
Severity: High
Known exploited: Not listed in CISA KEV
Exploit availability: Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
Published: 26 October 2026
Last updated: 26 October 2026
Weakness: CWE-755
Assigner: sep@nlnetlabs.nl

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

At the source

References

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

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