CVE-2023-28451
highpriority · track · 0EPSS 0.005 · 45 %ileEUUSEPSS · scored 2026-10-27
An issue was discovered in Technitium 11.0.2. There is a vulnerability (called BadDNS) in DNS resolving software, which triggers a resolver to ignore valid responses, thus causing DoS (denial of service) for normal resolution. The effects of an exploit would be widespread and highly impactful, because the attacker could just forge a response targeting the source port of a vulnerable resolver without the need to guess the correct TXID.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.9–7.5
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (2)
Products and version ranges known to be affected.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (7)
External citations — patches, advisories, analysis.
- https://cxsecurity.com/cveshow/CVE-2023-28451/cnnvd
- https://gist.github.com/idealeer/89947ca07836fd0f7e9761198ca9a0f3.cnnvd
- https://technitium.com/dns/cnnvd
- https://gist.github.com/idealeer/89947ca07836fd0f7e9761198ca9a0f3.enisa_euvd
- https://technitium.com/dns/enisa_euvd
- https://gist.github.com/idealeer/89947ca07836fd0f7e9761198ca9a0f3.Broken Linknvd
- https://technitium.com/dns/Productnvd
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