PowerDNS before 2.9.21.2 allows remote attackers to cause a denial of service (daemon crash) via a CH HINFO query.

published 2008-12-09 17 y ago modified 2026-06-16 4 mo ago also EUVD-2008-5254

cvss: 4.3; version 2.0, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 3.4%; EPSS 3.4% chance of exploitation in 30 days, percentile 88%
public exploits: 0; none known

Patch / fix

distros 1

pdns Debian 14, Debian 13, Debian 12 2.9.21.2-1

debian advisories DEBIAN-CVE-2008-5277

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2008-5277 updated 2025-11-21

pdns: DoS (daemon crash) via a CH HINFO query.

Red Hat All currently supported Red Hat products
not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

3.38% chance of exploitation in the next 30 days, higher than 88% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
NVD	2.0	4.3	AV:N/AC:M/Au:N/C:N/I:N/A:P

Classification

Weakness

CWE-16 Configuration

References

lists.opensuse.org /opensuse-security-announce/2008-12/msg00002.html
vendor-advisory
security.gentoo.org /glsa/glsa-200812-19.xml
vendor-advisory
doc.powerdns.com /powerdns-advisory-2008-03.html
securitytracker.com /id?1021304
vdb-entry
secunia.com /advisories/33264
third-party-advisory
exchange.xforce.ibmcloud.com /vulnerabilities/47076
vdb-entry
securityfocus.com /bid/32627
vdb-entry
secunia.com /advisories/32979
third-party-advisory

Sources

CVE List CVE-2008-5277
NVD CVE-2008-5277

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary