CVEsNLnet LabsCVE-2026-72758Published Oct 26, 17:07 · Updated Oct 26, 17:57 UTC
7.5
HighCVSS 3.1 · from NLnet Labs
CVE-2026-72758

Routinator may exit on malformed ranges

Routinator · CWE-755 · CWE-755
AffectedRoutinator
FixUpdate to 0.15.3 or newer
PublishedOct 26, 17:07 · NLnet Labs
ScoredOct 26 · 7.5 · NLnet Labs
Exploit code publicNone known · checked 21:18 UTC
ExploitedNone known · CISA KEV checked 22:05 UTC

What we know

No known exploitation. CISA KEV, checked 22:05 UTC.
No public exploit code known. Exploit-DB, Metasploit, Nuclei, checked 21:18 UTC.
An attacker only needs network access to the target. No login needed. CVSS: network, no privileges.
A successful attack can take the service down. CVSS impact.

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.

From NLnet Labs

Affected and fixed versions

ProductAffectedFixed inRoutinatorNot affected0.15.3

Exploit code

Exploit-DBnone knownMetasploitnone knownNucleinone known

References

www.nlnetlabs.nl/downloads/routinator/CVE-2026-72756.txt · nlnetlabs.nlvendor advisory

Other CVEs in Routinator

All 19 →
5.3Routinator HTTP server becomes unavailable with many unclosed connections · CVE-2026-72757Oct 267.5Routinator exits on malformed rsync URIs · CVE-2026-72756Oct 263.8Routinator stores TA certificate in cache without validation · CVE-2026-72755Oct 26