5

CVE-2026-33259

Concurrent modification of RPZ data can lead to denial of servce

Having many concurrent transfers of the same RPZ can lead to inconsistent RPZ data, use after free and/or a crash of the recursor. Normally concurrent transfers of the same RPZ zone can only occur with a malfunctioning RPZ provider.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Powerdns ≫ Recursor Version >= 5.2.0 < 5.2.9
Powerdns ≫ Recursor Version >= 5.3.0 < 5.3.6
Powerdns ≫ Recursor Version5.4.0
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0% 0
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
security@open-xchange.com 5 0.7 4.2
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:L/A:H
CWE-416 Use After Free

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.