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Fencer Intel
critical 9.1

CVE-2016-6254 json

Heap-based buffer overflow in the parse_packet function in network.c in collectd before 5.4.3 and 5.x before 5.5.2 allows remote attackers…

published 2016-08-19 10 y ago modified 2026-06-17 4 mo ago also EUVD-2016-7184

cvss
9.1
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
5.7%
EPSS 5.7% chance of exploitation in 30 days, percentile 93%
public exploits
0
none known

Summary

Heap-based buffer overflow in the parse_packet function in network.c in collectd before 5.4.3 and 5.x before 5.5.2 allows remote attackers to cause a denial of service (daemon crash) or possibly execute arbitrary code via a crafted network packet.

Patch / fix

  • collectd collectd 5.4.3, 5.5.2
  • collectd Debian 13, Debian 12 5.5.2-1

debian advisories DEBIAN-CVE-2016-6254

  • collectd Ubuntu Pro 14.04 LTS 5.4.0-3ubuntu2.2+esm1
  • collectd Ubuntu Pro 16.04 LTS 5.5.1-1ubuntu0.1~esm1

ubuntu advisories UBUNTU-CVE-2016-6254

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • collectd WebYast 1.3, Lifecycle Management Server 1.3 4.9.4-0.25.1

suse advisories SUSE-SU-2016:2187-1

  • collectd Alpine 3.24, Alpine 3.23, Alpine 3.22 +16 more 5.5.2-r0

alpine advisories ALPINE-CVE-2016-6254

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

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-2016-6254 updated cvss 8.6

collectd: heap overflow in the network plugin

  • Red Hat Enterprise Linux OpenStack Platform 7 (Kilo) Operational Tools collectd, collectd-dbi, collectd-dns, collectd-lvm, collectd-amqp, collectd-curl, +18 more Red Hat OpenStack Platform 8 (Liberty) Operational Tools collectd, collectd-dbi, collectd-dns, collectd-lvm, collectd-amqp, collectd-curl, +18 more Red Hat OpenStack Platform 9 (Mitaka) Operational Tools collectd, collectd-dbi, collectd-dns, collectd-lvm, collectd-amqp, collectd-curl, +18 more Red Hat Storage Console 2 collectd
    affected: no fix planned “Will not fix”
  • Red Hat OpenStack Platform 10 (Newton) Operational Tools collectd, collectd-dbi, collectd-dns, collectd-rdt, collectd-bind, collectd-ceph, +41 more
    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

5.74% chance of exploitation in the next 30 days, higher than 93% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.0 9.1 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
NVD 2.0 6.4 AV:N/AC:L/Au:N/C:N/I:P/A:P

Classification

Weakness
  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

References

Sources

Fencer Intel 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.