CVE-2024-33655
mediumpriority · track · 1EPSS 0.017 · 78 %ileEURUEPSS · scored 2026-10-27
The DNS protocol in RFC 1035 and updates allows remote attackers to cause a denial of service (resource consumption) by arranging for DNS queries to be accumulated for seconds, such that responses are later sent in a pulsing burst (which can be considered traffic amplification in some cases), aka the "DNSBomb" issue.
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 · 5.9–7.5
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (17)
Products and version ranges known to be affected.
also known as (4)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (39)
External citations — patches, advisories, analysis.
- https://alas.aws.amazon.com/ALAS-2024-1934.htmlcnnvd
- https://cxsecurity.com/cveshow/CVE-2024-33655/cnnvd
- https://datatracker.ietf.org/doc/html/rfc1035cnnvd
- https://github.com/NLnetLabs/unbound/commit/c3206f4568f60c486be6d165b1f2b5b254fea3decnnvd
- https://github.com/TechnitiumSoftware/DnsServer/blob/master/CHANGELOG.md#version-120cnnvd
- https://gitlab.isc.org/isc-projects/bind9/-/issues/4398cnnvd
- https://meterpreter.org/researchers-uncover-dnsbomb-a-new-pdos-attack-exploiting-legitimate-dns-features/cnnvd
- https://nlnetlabs.nl/downloads/unbound/CVE-2024-33655.txtcnnvd
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