RCE in Powerdns Authoritative
CVE-2026-33608
An attacker can send a notify request that causes a new secondary domain to be added to the bind backend, but causes said backend to update its configuration to an invalid one, leading to the backend no longer able to run on the next restart, requiring manual operation to fix it.
Vulnerability class: RCE (Remote Code Execution)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.4 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H.
EPSS exploit prediction
EPSS: 0.006 (46.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 46th percentile — 46.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.006 · change: +0.002
Affected products
- Powerdns Authoritative — versions 5.0.0, 4.9.0
Weakness classification (CWE)
References
- docs.powerdns.com/authoritative/security-advisories/powerdns-advisory-powerdns-… (Broken Link, Vendor Advisory)
Frequently asked questions
- What is CVE-2026-33608?
- CVE-2026-33608 is a high-severity vulnerability in Powerdns Authoritative, classified under Code Injection. CVSS score: 7.4/10. Published 2026-04-22.
- How severe is CVE-2026-33608?
- High severity. CVSS v3 base score is 7.4 out of 10.