7.5

CVE-2016-5427: powerdns authoritative Resource Management Errors

CVSS: 7.5v3.0HighModified
AliasesUBUNTU-CVE-2016-5427DEBIAN-CVE-2016-5427
Published 21-09-2016Last modified 06-08-2024
Open JSON

Vulnerability summary

CVE-2016-5427 is a high (CVSS 7.5) Resource Management Errors vulnerability in powerdns authoritative. EPSS estimates a 62.98% chance of exploitation in the next 30 days, higher than 99.1% of scored vulnerabilities.

Overall risk
43/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.0 (NVD)
EPSS score
62.98%
0%100%
Critical · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 3
DLA-627-1DSA-3664-1MGASA-2016-0324

Timeline

  1. 21-09-2016
    PublishedVulnerability first disclosed.
  2. 06-08-2024
    Last modifiedVulnerability information updated.

Description

PowerDNS (aka pdns) Authoritative Server before 3.4.10 does not properly handle a . (dot) inside labels, which allows remote attackers to cause a denial of service (backend CPU consumption) via a crafted DNS query.

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

62.98%

Chance of exploitation in the next 30 days

Percentile

99%

Versus all other CVEs

30-day change

0.00 pp

From 62.98% on 19-09-2026

19-09-202619-10-2026
EPSS score
62.98%

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
  • pdns< 4.0.0~alpha1-1
Powerdns1 product
Ubuntu1 product
  • pdns< 4.0.0~alpha2-3build1

3 vendors · 3 products

References

9 links