What is CVE-2026-32792?

CVE-2026-32792 is a medium-severity vulnerability in Nlnet Labs Unbound, classified under Out-of-bounds Read. CVSS score: 5.3/10. Published 2026-05-20.

How severe is CVE-2026-32792?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Out-of-bounds Read in Nlnet Labs Unbound

CVE-2026-32792

NLnet Labs Unbound 1.6.2 up to and including version 1.25.0 has a denial of service vulnerability when compiled with DNSCrypt support ('--enable-dnscrypt'). A bad DNSCrypt query could underflow Unbound's DNSCrypt packet reading procedure t…

Vulnerability class: Buffer Overflow

EPSS: 0.001 (18.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.

Affected products

Nlnet Labs Unbound — versions 1.6.2
Nlnetlabs Unbound

Weakness classification (CWE)

CWE-125 — Out-of-bounds Read
CWE-166

References

sep@nlnetlabs.nl (vendor-advisory, Mitigation, Vendor Advisory)

Frequently asked questions

What is CVE-2026-32792?: CVE-2026-32792 is a medium-severity vulnerability in Nlnet Labs Unbound, classified under Out-of-bounds Read. CVSS score: 5.3/10. Published 2026-05-20.
How severe is CVE-2026-32792?: Medium severity. CVSS v3 base score is 5.3 out of 10.