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CVE PROGRAM SOURCE RECORD6.5 Medium

CVE-2026-33602

Off-by-one access when processing crafted UDP responses

Read JSON ↗CVE.org ↗
Status
Published
Published
Updated
Assigning organization
OX

Description

A rogue backend can send a crafted UDP response with a query ID off by one related to the maximum configured value, triggering an out-of-bounds write leading to a denial of service.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

PowerDNS DNSdist

Default version status: unaffected

  • 1.9.0 to < 1.9.13affected
  • 2.0.0 to < 2.0.4affected

References