High 8.2Published Oct 26, 2026

CVE-2026-72753Routinator incorrectly handles delta updates

Updated under an hour ago (Oct 30, 2026, 3:40 AM ET)

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It affects NLnet Labs Routinator. Add what you run to find out whether that includes you.

EPSS puts the chance of exploitation in the next 30 days at 0.40%, higher than 34% of scored CVEs.

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Start free and add your stackFree account, 3 products Every CVE for NLnet Labs Routinator Exploited in the last 30 days

When Routinator encounters an RRDP notification file with gaps in the delta entries, it is still accepted and parsed, potentially leading to missing data. If it encounters too many delta entries it may run out of memory.

CVSS: 8.2 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
Weakness (CWE): CWE-755
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): 0.40% (percentile 34)
Assigned by: NLnet Labs
NVD analysis: Deferred
Record last updated: Oct 26, 2026
First seen by InfoSec Signals: Oct 26, 2026

Affected products

Affected products

NLnet Labs Routinator nlnet_labs:routinator (from the name)	from 0.15.3 not affected	CNA record

References

References

https://www.nlnetlabs.nl/downloads/routinator/CVE-2026-72753.txt	vendor-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.