CVE-2026-33602

Off-by-one access when processing crafted UDP responses

Medium · published April 22, 2026

CVSS v3.1
6.5
EPSS
1%
Percentile
67.3
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
6.5 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H
CVSS v4.0
Not supplied
EPSS
0.01176 · 67.3th percentile
Published
2026-04-22T13:45Z
EPSS history
Timeline
  • 22 APR 13:45Z
    Off-by-one access when processing crafted UDP responses
    cvelistv5