CVE-2025-59029: powerdns recursor Reachable Assertion
CVSS: 5.3v3.1MediumAnalyzed
AliasesUBUNTU-CVE-2025-59029DEBIAN-CVE-2025-59029
Published 09-12-2025Last modified 09-12-2025
Vulnerability summary
CVE-2025-59029 is a medium (CVSS 5.3) Reachable Assertion vulnerability in powerdns recursor. EPSS estimates a 0.37% chance of exploitation in the next 30 days, higher than 29.9% of scored vulnerabilities.
CVSS score
5.3/10
010
Medium · v3.1 (CVE.org)EPSS score
0.37%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 09-12-2025PublishedVulnerability first disclosed.
- 09-12-2025Last modifiedVulnerability information updated.
Description
An attacker can trigger an assertion failure by requesting crafted DNS records, waiting for them to be inserted into the records cache, then send a query with qtype set to ANY.
CVSS metrics
4 scores · 4 sources · 1 versionMedium 5.3Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:LSourcesAll 4 agree
- OSV · UbuntuEcosystem advisory · calculated5.3MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
- OSV · DebianEcosystem advisory · calculated5.3MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
- NVDNIST5.3MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
EPSS trend
Probability
0.37%
Chance of exploitation in the next 30 days
Percentile
30%
Versus all other CVEs
30-day change
0.00 pp
From 0.37% on 19-09-2026
19-09-202619-10-2026
EPSS score0.37%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Debian1 product
- pdns-recursor< 5.3.3-1
Powerdns1 product
- recursor≥ 5.3.0, < 5.3.2 | 5.3.0 | 5.3.1
Ubuntu1 product
- pdns-recursorAll versions (No fix recorded)
3 vendors · 3 products
