CVE-2026-12617

The issue is unexpected program termination based on ordering and/or specific content in responses to queries for CNAME or DNAME, and A records. Specifically, if a client queries for a DNAME and A record below the DNAME to the resolver, and the authoritative server responds positively to the A...

CVE-2026-50243

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 or an RPZ file with an RPZ-IP trigger, the rewriting handler does not check the security status of the upstream answer...

CVE-2026-12617

CVE-2026-12617 affects ISC BIND 9: vulnerable in 9.18.0–9.18.50 and 9.20.0–9.20.24 (including 9.18.11-S1–9.18.50-S1 and 9.20.9-S1–9.20.24-S1). The issue causes named to quit unexpectedly when handling responses for CNAME/DNAME and A records under certain query/order scenarios, potentially leading...

EUVD-2026-47711

The issue is unexpected program termination based on ordering and/or specific content in responses to queries for CNAME or DNAME, and A records. Specifically, if a client queries for a DNAME and A record below the DNAME to the resolver, and the authoritative server responds positively to the A...

CVE-2026-50248

CVE-2026-50248 affects NLnet Labs Unbound 1.7.0 through 1.25.1. When an auth/rpz zone has a configured primary hostname that resolves to a bogus A/AAAA, it can still be treated as a possible XFR endpoint. A malicious actor who can spoof the hostname’s A/AAAA (no valid RRSIG required) may become t...

CVE-2026-50243

CVE-2026-50243 affects NLnet Labs Unbound 1.6.2 up to 1.25.1. When the respip module is placed in front of the validator and used with a response-ip redirect or RPZ-IP trigger, the rewriting handler does not check the upstream answer’s security status and can rewrite a BOGUS A/AAAA reply to an op...

CVE-2026-50243

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 or an RPZ file with an RPZ-IP trigger, the rewriting handler does not check the security status of the upstream answer...

CVE-2026-42955 Extra fix for CVE-2026-40622 to also clamp the TTL of A/AAAA records disallowing a one-time 'ghost domain' delegation renewal via glue records

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 could extend the ghost domain window by up to one cached TTL configured value for A/AAAA glue records. Similar to other...

CVE-2026-41234 Froxlor: BIND Zone File Injection via TXT Record Content

Froxlor is open source server administration software. Prior to version 2.3.7, the DomainZones.add API endpoint does not sanitize newline characters in TXT record content. An authenticated customer with DNS editing enabled can inject newlines into TXT record values, which break out of the record...

EUVD-2012-1219

Malware in sbrugna...

EUVD-2012-1071

Malware in sbrugna...

EUVD-2022-4189

Malicious code in bioql PyPI...

CVE-2022-46405

Mastodon through 4.0.2 allows attackers to cause a denial of service large Sidekiq pull queue by creating bot accounts that follow attacker-controlled accounts on certain other servers associated with a wildcard DNS A record, such that there is uncontrolled recursion of attacker-generated message...

CVE-2012-1191

The resolver in dnscache in Daniel J. Bernstein djbdns 1.05 overwrites cached server names and TTL values in NS records during the processing of a response to an A record query, which allows remote attackers to trigger continued resolvability of revoked domain names via a "ghost domain names"...

SUSE CVE-2012-1033

The resolver in ISC BIND 9 through 9.8.1-P1 overwrites cached server names and TTL values in NS records during the processing of a response to an A record query, which allows remote attackers to trigger continued resolvability of revoked domain names via a "ghost domain names" attack...

SUSE CVE-2015-8899

Dnsmasq before 2.76 allows remote servers to cause a denial of service crash via a reply with an empty DNS address that has an 1 A or 2 AAAA record defined locally...

SUSE CVE-2018-1043

In Moodle 3.x, the setting for blocked hosts list can be bypassed with multiple A record hostnames...

GHSA-HPWM-84H5-VQR8 Moodle Setting for blocked hosts list can be bypassed with multiple A record hostnames

In Moodle 3.x, the setting for blocked hosts list can be bypassed with multiple A record hostnames...

U.S. Dept Of Defense: EC2 subdomain takeover at http://████████/

There is a dangling DNS A record that points to an EC2 instance that no longer exists, I was able to claim the EC2 instance and host content on http://███████/. Steps To Reproduce: 1. Visit http://█████████/██████████.html and view the PoC: ██████ Suggested Remediation Steps Remove the A record...

8x8: DNS Misconfiguration (Subdomain Takeover) - █████████.8x8.com

@melbadry9 reported to us an issue with an A record which pointed to subdomains outside of 8x8's control. This was caused due to a misconfiguration in a script, together with changes in AWS' DNS resolution behaviour. The issue has been rectified...