CVE-2025-59029
MediumCVSS 5.3Exploitation Probability (EPSS)
Low risk29th percentile - higher than 29% of all known CVEs
Summary
An attacker can trigger an assertion failure by requesting crafted DNS records, waiting for them to be inserted into the records cache, then sending a query with qtype set to ANY.
Risk Assessment
This may cause a DNS service crash, leading to a denial of service.
Recommendation
Apply available patches or restrict the ability to send ANY type queries to the DNS server.
Other vulnerabilities in DNS
See all- CVE-2023-50387High
The KeyTrap vulnerability in the DNSSEC protocol allows a remote attacker to cause a Denial of Service (DoS) by sending DNSSEC responses containing many DNSKEY and RRSIG records. This leads to excessive CPU consumption on the DNS server, potentially causing overload.
- CVE-2026-6949Medium
A TSIG packet with name compression can crash DNS. Incorrect size calculations when a TSIG record contains compressed names lead to a large out-of-bounds write, causing a server crash.
- CVE-2026-52684Low
A DNS issue occurs when the authoritative server responds very slowly and records expire in the meantime. In this case, TTL capping is not enforced due to lack of data. This does not happen during normal resolution.
- CVE-1999-1379Medium
The vulnerability in DNS allows remote attackers to use DNS name servers as traffic amplifiers. An attacker can send a UDP DNS query with a spoofed source address, resulting in more traffic to the victim than was sent by the attacker.
Original NVD description (English source)
An attacker can trigger an assertion failure by requesting crafted DNS records, waiting for them to be inserted into the records cache, then send a query with qtype set to ANY.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS