CVE-2026-10652

Zephyr's DNS resolver subsys/net/lib/dns parses resource records from DNS responses in dnsunpackanswer, which validated only the fixed RR header type, class, TTL, rdlength and accepted any attacker-declared rdlength, including one extending past the end of the received datagram. The TXT and SRV...

unbound: Unbound: Denial of Service due to excessive resource consumption with large DNS Resource Record Sets

A flaw was found in Unbound. A remote attacker can exploit this vulnerability by sending specially crafted DNS responses containing very large Resource Record Sets RRsets that require name compression. This can cause Unbound to spend a significant amount of time processing these responses, leadin...

CVE-2026-44390

A flaw was found in Unbound. A remote attacker can exploit this vulnerability by sending specially crafted DNS responses containing very large Resource Record Sets RRsets that require name compression. This can cause Unbound to spend a significant amount of time processing these responses, leadin...

K000161463: NLnet Labs Unbound vulnerability CVE-2026-42960

Security Advisory Description NLnet Labs Unbound up to and including version 1.25.0 is vulnerable to poisoning via promiscuous records for the authority section. Promiscuous RRSets that complement DNS replies in the authority section can be used to trick Unbound to cache such records. If an...

Exploit for CVE-2026-5172

CVE20265172poc CVE-2026-5172: buffer overflow in extractaddre...

CVE-2026-42960

NLnet Labs Unbound up to and including version 1.25.0 is vulnerable to poisoning via promiscuous records for the authority section. Promiscuous RRSets that complement DNS replies in the authority section can be used to trick Unbound to cache such records. If an adversary is able to attach such...

CVE-2026-44390

NLnet Labs Unbound up to and including version 1.25.0 has a vulnerability when handling replies with very large RRsets that Unbound needs to perform name compression for. Malicious upstream responses with very large RRsets with records that don't share a suffix above the root can cause Unbound to...

CVE-2026-44390

NLnet Labs Unbound up to and including version 1.25.0 has a vulnerability when handling replies with very large RRsets that Unbound needs to perform name compression for. Malicious upstream responses with very large RRsets with records that don't share a suffix above the root can cause Unbound to...

CVE-2026-44390

CVE-2026-44390 affects NLnet Labs Unbound up to and including 1.25.0. The issue arises when handling replies with very large RRsets that require name compression; malicious upstream responses with such RRsets can cause Unbound to spend excessive CPU time on compression, potentially leading to deg...

CVE-2026-44390 Unbounded name compression in certain cases causes degradation of service

NLnet Labs Unbound up to and including version 1.25.0 has a vulnerability when handling replies with very large RRsets that Unbound needs to perform name compression for. Malicious upstream responses with very large RRsets with records that don't share a suffix above the root can cause Unbound to...

NLnet Labs Unbound 安全漏洞

NLnet Labs Unbound is a high-performance DNS resolver open-sourced by NLnet Labs. Versions of NLnet Labs Unbound 1.25.0 and earlier contained security vulnerabilities. These vulnerabilities stemmed from unbound name compression operations when handling large RRsets, which could lead to performanc...

CVE-2026-45557

CVE-2026-45557 affects Technitium DNS Server. The issue is that the server aggressively fetches missing RRSIG records or mismatched DNSKEY records, enabling an attacker that controls a domain to trigger excessive network traffic from a vulnerable system. The vulnerability is fixed in version 15.0...

Astra Linux – Vulnerability in unbound

Unbound versions up to and including 1.21.0 contain a vulnerability when handling replies with very large RRsets that it needs to perform name compression on. Malicious upstream responses with very large RRsets can cause Unbound to spend considerable time applying name compression to downstream...

MiracleLinux 9 : bind-9.16.23-34.el9_7.1 (AXSA:2025-11501:12)

The remote MiracleLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2025-11501:12 advisory. bind: Cache poisoning attacks with unsolicited RRs CVE-2025-40778 bind: Cache poisoning due to weak PRNG CVE-2025-40780 Tenable has extracted the...

MiracleLinux 8 : bind-9.11.36-16.el8_10.2 (AXSA:2024-8688:02)

The remote MiracleLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2024-8688:02 advisory. bind: bind9: BIND's database will be slow if a very large number of RRs exist at the same nam CVE-2024-1737 bind9: bind: SIG0 can be used to exhaust...

CVE-2025-68471 Avahi has a reachable assertion in lookup_start

Avahi is a system which facilitates service discovery on a local network via the mDNS/DNS-SD protocol suite. In 0.9-rc2 and earlier, avahi-daemon can be crashed by sending 2 unsolicited announcements with CNAME resource records 2 seconds apart...

CVE-2025-68471

Avahi is a system which facilitates service discovery on a local network via the mDNS/DNS-SD protocol suite. In 0.9-rc2 and earlier, avahi-daemon can be crashed by sending 2 unsolicited announcements with CNAME resource records 2 seconds apart...

SUSE CVE-2002-1219

Buffer overflow in named in BIND 4 versions 4.9.10 and earlier, and 8 versions 8.3.3 and earlier, allows remote attackers to execute arbitrary code via a certain DNS server response containing SIG resource records RR...

SUSE CVE-2002-1221

BIND 8.x through 8.3.3 allows remote attackers to cause a denial of service crash via SIG RR elements with invalid expiry times, which are removed from the internal BIND database and later cause a null dereference...

RHEL 7 : bind (RHSA-2025:22205)

"The remote Redhat Enterprise Linux 7 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2025:22205 advisory. The Berkeley Internet Name Domain BIND is an implementation of the Domain Name System DNS protocols. BIND includes a DNS server named %NASLMINLEVEL...