CVE-2026-33602

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Source
https://cve.org/CVERecord?id=CVE-2026-33602
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-33602.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-33602
Downstream
Related
Published
2026-04-22T13:45:34.667Z
Modified
2026-07-08T08:12:49.176668032Z
Severity
  • 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H CVSS Calculator
Summary
Off-by-one access when processing crafted UDP responses
Details

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.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/33xxx/CVE-2026-33602.json",
    "cna_assigner": "OX"
}
References

Affected packages

Git / github.com/powerdns/pdns

Affected ranges

Type
GIT
Repo
https://github.com/powerdns/pdns
Events
Introduced
298a9d67fb760a12eabe89164f92fb814572aea8
Fixed
642a2bb5b67b2bf5c856819273d8f41fecbc0da8
Introduced
89747e81bc60d7950276d5fda3ca669fa81b7cf9
Fixed
bfd0cbf4bf5c1f8757d0cd94c86ea88caf7b2f6d
Database specific 
{
    "source": "CPE_RANGE",
    "cpe": "cpe:2.3:a:powerdns:dnsdist:*:*:*:*:*:*:*:*",
    "extracted_events": [
        {
            "introduced": "1.9.0"
        },
        {
            "fixed": "1.9.13"
        },
        {
            "introduced": "2.0.0"
        },
        {
            "fixed": "2.0.4"
        }
    ]
}

Affected versions

dnsdist-1.*
dnsdist-1.9.0
dnsdist-1.9.1
dnsdist-1.9.10
dnsdist-1.9.11
dnsdist-1.9.2
dnsdist-1.9.3
dnsdist-1.9.4
dnsdist-1.9.5
dnsdist-1.9.6
dnsdist-1.9.7
dnsdist-1.9.8
dnsdist-1.9.9
dnsdist-2.*
dnsdist-2.0.0
dnsdist-2.0.1
dnsdist-2.0.2

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-33602.json"