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Vendor archive

nlnetlabs CVEs

Beta · best-effort

95 CVEs tagged to vendor nlnetlabs12 Critical, 39 High, 37 Medium, 7 Low, 0 Unrated.

CVE-2026-56444

Published Jul 22, 2026

In NLnet Labs Unbound 1.20.0 up to and including 1.25.1, when Unbound is configured with 'serve-expired: yes' and 'serve-expired-client-timeout > discard-timeout > 0' (contrary to…

CVSS 5.9 · Medium
evidence mentions
2
Buzz score
21.0
Vendor/product tagsBeta · best-effort

CVE-2026-56416

Published Jul 22, 2026

In NLnet Labs Unbound up to and including version 1.25.1, when the validator builds the canonical RDATA form for an RRSIG-covered PX/RP/MINFO/SOA RRset, it computes the address of…

CVSS 4.8 · Medium
evidence mentions
2
Buzz score
21.0
Vendor/product tagsBeta · best-effort

CVE-2026-55991

Published Jul 22, 2026

In NLnet Labs Unbound 1.22.0 up to and including 1.25.1, a remote unauthenticated client can trigger a libngtcp2 assertion (if compiled with assertions on) and terminate the entir…

CVSS 5.9 · Medium
evidence mentions
2
Buzz score
21.0
Vendor/product tagsBeta · best-effort

CVE-2026-55990

Published Jul 22, 2026

In NLnet Labs Unbound 1.7.0 up to and including 1.25.1, when the 'dnscrypt:' clause lists more 'dnscrypt-provider-cert:' files than there are matching 'dnscrypt-secret-key:' files…

CVSS 5.9 · Medium
evidence mentions
2
Buzz score
21.0
Vendor/product tagsBeta · best-effort

CVE-2026-55973

Published Jul 22, 2026

In NLnet Labs Unbound 1.23.0 up to and including 1.25.1, when 'dns-error-reporting: yes' is set, the EDNS Report-Channel option (code 18) from the last upstream response is read a…

CVSS 7.5 · High
evidence mentions
2
Buzz score
21.0
Vendor/product tagsBeta · best-effort

CVE-2026-55717

Published Jul 22, 2026

In NLnet Labs Unbound 1.10.0 up to and including 1.25.1, when 'serve-expired: yes' is set together with a 'response-ip: <net> redirect' /'response-ip-data: <net> CNAME <target>' r…

CVSS 5.9 · Medium
evidence mentions
2
Buzz score
21.0
Vendor/product tagsBeta · best-effort

CVE-2026-55708

Published Jul 22, 2026

In NLnet Labs Unbound 1.6.0 up to and including 1.25.1, the 'view_local_data' and 'view_local_datas' commands of 'unbound-control' create a bare local zones tree for an already co…

CVSS 3.1 · Low
evidence mentions
2
Buzz score
21.0
Vendor/product tagsBeta · best-effort

CVE-2026-54478

Published Jul 22, 2026

In NLnet Labs Unbound 1.18.0 up to and including 1.25.1, when Unbound listens on a 'proxy-protocol-port' interface with 'answer-cookie: yes', the RFC 9018 server-cookie SipHash is…

CVSS 3.7 · Low
evidence mentions
2
Buzz score
21.0
Vendor/product tagsBeta · best-effort

CVE-2026-52863

Published Jul 22, 2026

In NLnet Labs Unbound 1.25.0 up to and including 1.25.1, a fix that makes the 'respip' and 'dns64' modules work together, creates a shallow copy of the view name in effect that co…

CVSS 5.9 · Medium
evidence mentions
2
Buzz score
21.0
Vendor/product tagsBeta · best-effort

CVE-2026-50252

Published Jul 22, 2026

In NLnet Labs Unbound 1.4.22 up to and including 1.25.1, UDP source port is randomized and intended to serve as a secret value that increases the entropy of DNS transactions. When…

CVSS 5.7 · Medium
evidence mentions
2
Buzz score
21.0
Vendor/product tagsBeta · best-effort

CVE-2026-50251

Published Jul 22, 2026

In NLnet Labs Unbound up to and including version 1.25.1, when 'unwanted-reply-threshold' is enabled (set to any value greater than zero), glue records of 0.0.0.0/::0 can short-ci…

CVSS 5.3 · Medium
evidence mentions
2
Buzz score
21.0
Vendor/product tagsBeta · best-effort

CVE-2026-50248

Published Jul 22, 2026

In NLnet Labs Unbound 1.7.0 up to and including 1.25.1, when an auth/rpz zone has a configured primary hostname that resolves to BOGUS A/AAAA, it is still considered as a possible…

CVSS 6.5 · Medium
evidence mentions
2
Buzz score
21.0
Vendor/product tagsBeta · best-effort

CVE-2026-50243

Published Jul 22, 2026

In NLnet Labs Unbound 1.6.2 up to and including 1.25.1, when Unbound is configured with the 'respip' module in front of the validator together with a 'response-ip' redirect rule o…

CVSS 6.3 · Medium
evidence mentions
2
Buzz score
21.0
Vendor/product tagsBeta · best-effort

CVE-2026-50046

Published Jul 22, 2026

In NLnet Labs Unbound 1.15.0 up to and including 1.25.1, the TLS server name used for DNS-over-TLS (DoT) forwarded queries is tied to a struct's ('serviced_query') lifetime but al…

CVSS 5.9 · Medium
evidence mentions
2
Buzz score
21.0
Vendor/product tagsBeta · best-effort

CVE-2026-50045

Published Jul 22, 2026

In NLnet Labs Unbound 1.22.0 up to and including 1.25.1, a single client query for a deeply nested name under a DNSSEC-signed parent can cause Unbound to send more upstream packet…

CVSS 5.3 · Medium
evidence mentions
2
Buzz score
21.0
Vendor/product tagsBeta · best-effort

CVE-2026-46582

Published Jul 22, 2026

In NLnet Labs Unbound 1.6.0 up to and including 1.25.1, a replay of a wildcard rrset as another piece of data, could be briefly considered DNSSEC secure based only on the RRSIG va…

CVSS 3.7 · Low
evidence mentions
2
Buzz score
21.0
Vendor/product tagsBeta · best-effort

CVE-2026-44690

Published Jul 22, 2026

In NLnet Labs Unbound 1.7.0 up to and including 1.25.1, insufficient validation of the RRSIG.Labels field combined with premature cache writes during RFC 8198 aggressive NSEC proc…

CVSS 7.5 · High
evidence mentions
2
Buzz score
21.0
Vendor/product tagsBeta · best-effort

CVE-2026-44687

Published Jul 22, 2026

In NLnet Labs Unbound 1.13.2 up to and including 1.25.1, stub or forward zones where the name is below an intermediate labed below a DNSSEC signed zone could be shadowed by the in…

CVSS 3.7 · Low
evidence mentions
2
Buzz score
21.0
Vendor/product tagsBeta · best-effort

CVE-2026-44621

Published Jul 22, 2026

With NLnet Labs Unbound up to and including version 1.25.1, applications using libunbound and configured with 'unwanted-reply-threshold', could eventually be abruptly terminated i…

CVSS 5.9 · Medium
evidence mentions
2
Buzz score
21.0
Vendor/product tagsBeta · best-effort

CVE-2026-42955

Published Jul 22, 2026

In NLnet Labs Unbound 1.16.2 up to and including 1.25.1, a similar vulnerability as with CVE-2026-40622 in the 'ghost domain names' family of attacks was found in Unbound that cou…

CVSS 3.7 · Low
evidence mentions
2
Buzz score
21.0
Vendor/product tagsBeta · best-effort

CVE-2026-41637

Published Jul 22, 2026

In NLnet Labs Unbound 1.22.0 up to and including 1.25.1, client terminated DNS-over-QUIC (DoQ) queries are not accounted properly by Unbound resulting in low-cost inflation of the…

CVSS 3.7 · Low
evidence mentions
2
Buzz score
21.0
Vendor/product tagsBeta · best-effort

CVE-2026-40691

Published Jul 22, 2026

In Unbound 1.9.0 up to and including 1.25.1, when a DNSCrypt query is received over TCP, the routine that encrypts the reply in place fails to bound the reply length against the d…

CVSS 7.5 · High
evidence mentions
2
Buzz score
21.0
Vendor/product tagsBeta · best-effort

CVE-2026-32665

Published Jul 22, 2026

In NLnet Labs Unbound 1.22.0 up to and including 1.25.1, when downstream DNS-over-QUIC (DoQ) is enabled, the first two bidirectional streams on a new QUIC connection (stream_id 0…

CVSS 7.5 · High
evidence mentions
2
Buzz score
21.0
Vendor/product tagsBeta · best-effort

CVE-2026-12490

Published Jun 25, 2026

When a provide-xfr is given with a tls-auth-name, a secondary requesting a transfer should provide a client certificate with that name. However, no client certificate is needed wh…

CVSS 8.2 · High
evidence mentions
1
Buzz score
11.9
Vendor/product tagsBeta · best-effort

CVE-2026-12246

Published Jun 25, 2026

NSD version 4.14.0 introduced a bug where a specially crafted APL RR, with an adflength larger than permitted for the address family will overwrite the stack when the zone is writ…

CVSS 7.2 · High
evidence mentions
1
Buzz score
11.9
Vendor/product tagsBeta · best-effort
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