9.8

CVE-2026-33608: powerdns authoritative Code Injection

CVSS: 9.8v3.1CriticalAnalyzed
AliasesUBUNTU-CVE-2026-33608DEBIAN-CVE-2026-33608
Published 22-04-2026Last modified 22-04-2026
Open JSON

Vulnerability summary

CVE-2026-33608 is a critical (CVSS 9.8) Code Injection vulnerability in powerdns authoritative. EPSS estimates a 0.59% chance of exploitation in the next 30 days, higher than 47.3% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.8/10
010
Critical · v3.1 (NVD)
EPSS score
0.59%
0%100%
Low · +0.21 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 22-04-2026
    PublishedVulnerability first disclosed.
  2. 22-04-2026
    Last modifiedVulnerability information updated.

Description

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.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.59%

Chance of exploitation in the next 30 days

Percentile

47%

Versus all other CVEs

30-day change

+0.21 pp

From 0.38% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.59%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Debian1 product
  • pdnsAll versions (No fix recorded) | < 4.9.14-0+deb13u1 | < 5.0.4-1
Powerdns1 product
Ubuntu1 product
  • pdnsAll versions (No fix recorded)

3 vendors · 3 products

References

5 links