How severe is CVE-2026-49232?

CVE-2026-49232 has a CVSS 4.0 base score of 8.7, rated high severity.

Is CVE-2026-49232 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (25th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-49232?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-49232 have an EU (EUVD) identifier?

Yes. CVE-2026-49232 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-35062.

When was CVE-2026-49232 published?

CVE-2026-49232 was published on 2026-06-08 and last updated on 2026-06-17.

CVE-2026-49232

CVE-2026-49232 is a high-severity vulnerability with a CVSS 4.0 base score of 8.7. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-755.

Key facts

Severity: High (CVSS 4.0 base score 8.7)
EPSS exploit prediction: 0% (25th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-35062
Weakness: CWE-755
Published: 2026-06-08
Last modified: 2026-06-17

Description

Routinator exits on any error when accepting incoming HTTP or RTR connections, including ones it can recover from such as running out of file descriptors. This condition can be triggered maliciously by an attacker by opening a large number of connections to the HTTP or RTR server. This only affects users that make their HTTP or RTR server available to untrusted networks.

Frequently asked questions

What is CVE-2026-49232?: Routinator exits on any error when accepting incoming HTTP or RTR connections, including ones it can recover from such as running out of file descriptors. This condition can be triggered maliciously by an attacker by opening a large number of connections to the HTTP or RTR server. This only affects users that make their HTTP or RTR server available to untrusted networks.
How severe is CVE-2026-49232?: CVE-2026-49232 has a CVSS 4.0 base score of 8.7, rated high severity.
Is CVE-2026-49232 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (25th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-49232?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-49232 have an EU (EUVD) identifier?: Yes. CVE-2026-49232 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-35062.
When was CVE-2026-49232 published?: CVE-2026-49232 was published on 2026-06-08 and last updated on 2026-06-17.

References

https://www.nlnetlabs.nl/downloads/routinator/CVE-2026-49232.txt

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